R and B R-2 R.C. R.V. RA RAF RAIU RAM RAM disk RAS RBC RCMP REIT REM REM sleep RES RF RFD RH RHD RICO RICO Act RIRA RISC RNA RNA polymerase RNase ROI ROM ROTC RPA-ABB RTLT RU 486 RUF RV Ra Rabelaisian Rabi I Rabi II Rachel Rachycentridae Rachycentron Rachycentron canadum Racketeer Influenced and Corrupt Organizations Act Radiigera Radiigera fuscogleba Radiolaria Radyera Radyera farragei Raffia farinifera Raffia ruffia Raffia taedigera Raffia vinifera Rafflesiaceae Ragnarok Rahu Rain-giver Raja batis Raja erinacea Raja laevis Raja radiata Rajab Rajidae Rajiformes Rajpoot Rajput Rallidae Ram Rama Ramachandra Ramadan Ramalina Ramanavami Ramayana Rambouillet Ramman Ramphastidae Ramphomicron Ramsay Hunt syndrome Ramsons Rana Rana cascadae Rana catesbeiana Rana clamitans Rana goliath Rana palustris Rana pipiens Rana sylvatica Rana tarahumarae Rana temporaria Ranales Ranatra Rangifer Rangifer arcticus Rangifer caribou Rangifer tarandus Ranidae Rankine Rankine scale Ranunculaceae Ranunculales Ranunculus Ranunculus acris Ranunculus aquatilis Ranunculus bulbosus Ranunculus ficaria Ranunculus flammula Ranunculus glaberrimus Ranunculus lingua Ranunculus lyalii Ranunculus occidentalis Ranunculus repens Ranunculus sceleratus Ranvier's nodes Raoulia Raoulia australis Raoulia lutescens Rapateaceae Raphanus Raphanus raphanistrum Raphanus sativus Raphanus sativus longipinnatus Raphia Raphicerus Raphicerus campestris Raphidae Raphidiidae Raphus Raphus cucullatus Raptores Rashtriya Swayamsevak Sangh Raskolnikov Rasta Rastafari Rastafarian Rastafarianism Rastas Ratibida Ratibida columnaris Ratibida columnifera Ratibida tagetes Ratitae Rattus Rattus norvegicus Rattus rattus Rau-Sed Raudixin Rauwolfia serpentina Ravenala madagascariensis Ravenna Ravenna grass Ray Robinson Rayleigh disk Raynaud's sign Rb Re Read method Read method of childbirth Reagan administration Real Estate Investment Trust Real IRA Real Irish Republican Army Reaumur scale Reaumur thermometer Rebecca Rebecca Rolfe Rebekah Received Pronunciation Received Pronunciation language Recent epoch Reconstruction Era Reconstruction Period Recurvirostra Recurvirostridae Red Army Faction Red Brigades Red Cross Red Delicious Red Guard Red Hand Defenders Red Indian Red Notice Red Planet Red Sun Red Tai Rediffusion Redskin Reduviidae Reform Jew Reform Judaism Reformation Regalecidae Regalecus glesne Regency Regency era Regents of the University of California v. Bakke Reglaecus Regnellidium diphyllum Regulus Regulus calendula Regulus regulus Regulus satrata Reign of Terror Reiter's disease Reiter's syndrome Reithrodontomys Rejoicing in the Law Rejoicing of the Law Rejoicing over the Law Relafen Relanium Religious Society of Friends Rembrandtesque Remembrance Day Remembrance Sunday Remicade Remilegia Remilegia australis Remus Renaissance Renaissance revival Reoviridae Reptantia Reptilia Republican Guard Republican Party Rescriptor Reseda luteola Reseda odorata Resedaceae Reserve Officers Training Corps Restoration Restoril Resurrection Resurrection of Christ Resurrection of Jesus Retama Retama raetam Reticulitermes Reticulitermes flanipes Reticulitermes lucifugus Reticulum Retrophyllum Retrovir Reuben Reuters dispatch Revelation Revelation of Saint John the Divine Revised Standard Version Revised Version Revolutionary Armed Forces of Colombia Revolutionary Communist League Revolutionary Justice Organization Revolutionary Organization 17 November Revolutionary Organization of Socialist Muslims Revolutionary People's Liberation Front Revolutionary People's Liberation Party Revolutionary People's Struggle Revolutionary Proletarian Army Revolutionary Proletarian Initiative Nuclei Revolutionary Proletarian Nucleus Revolutionary United Front Revolutionary calendar Revolutionary calendar month Reye's syndrome Reynard Rf Rg Rh Rh antibody Rh factor Rh incompatibility Rh negative Rh positive Rh-negative blood Rh-negative blood type Rh-positive blood type Rhabdoviridae Rhadamanthus Rhaeto-Romance Rhaeto-Romanic Rhagoletis Rhagoletis pomonella Rhamnaceae Rhamnales Rhamnus Rhamnus californicus Rhamnus carolinianus Rhamnus croceus Rhamnus frangula Rhamnus purshianus Rhapis Rhapis excelsa Rhapis humilis Rhea Rhea americana Rheidae Rheiformes Rheims-Douay Bible Rheims-Douay Version Rhenish Rheum australe Rheum cultorum Rheum emodi Rheum palmatum Rheum rhabarbarum Rheum rhaponticum Rhexia Rhibhus Rhincodon Rhincodon typus Rhincodontidae Rhine wine Rhinobatidae Rhinoceros antiquitatis Rhinoceros unicornis Rhinocerotidae Rhinolophidae Rhinonicteris Rhinonicteris aurantius Rhinoptera Rhinoptera bonasus Rhinotermitidae Rhipsalis Rhiptoglossa Rhizobiaceae Rhizobium Rhizoctinia solani Rhizophora Rhizophora mangle Rhizophoraceae Rhizopoda Rhizopogon Rhizopogon idahoensis Rhizopogonaceae Rhizopus nigricans Rhizopus stolonifer Rhodanthe manglesii Rhode Island bent Rhode Island red Rhode Islander Rhodes grass Rhodes scholar Rhodesian Rhodesian man Rhodesian ridgeback Rhododendron californicum Rhododendron maxima Rhododendron viscosum Rhodophyceae Rhodophyta Rhodosphaera Rhodosphaera rhodanthema Rhodymenia Rhodymenia palmata Rhodymeniaceae Rhoeadales Rhone wine Rhus Rhus aromatica Rhus copallina Rhus dermatitis Rhus diversiloba Rhus glabra Rhus laurina Rhus ovata Rhus quercifolia Rhus radicans Rhus rhodanthema Rhus toxicodenedron Rhus trilobata Rhus typhina Rhus verniciflua Rhus vernix Rhyacotriton Rhyacotriton olympicus Rhynchocephalia Rhynchoelaps Rhynchoelaps australis Rhyncostylis Rhynia Rhyniaceae Ribes Ribes grossularia Ribes nigrum Ribes rubrum Ribes sanguineum Ribes sativum Ribes uva-crispa Ribhus Richardson ground squirrel Richardson vole Richardson's geranium Richea Richea dracophylla Richea pandanifolia Richmondena Richmondena Cardinalis Richter scale Ricinus Ricinus communis Rickettsiaceae Rickettsiales Riemannian Riemannian geometry Riesling Rifadin Riffian Rift Valley fever Rig-Veda Rigel Riggs' disease Rigil Rigil Kent Rigveda Riksmaal Riksmal Rimactane Ringer solution Ringer's solution Rio Nunez coffee Rioja Riot Act Rip van Winkle Riparia Riparia riparia Riss glaciation Rissa Ritalin Rivina Rivina humilis Ro Robaxin Robert E Lee Day Robert E Lee's Birthday Robert's Rules of Order Robin Goodfellow Robin Hood Robinia Robinia hispida Robinia pseudoacacia Robinia viscosa Robinson Crusoe Robitussin Roccella tinctoria Roccellaceae Rocco Marciano Roccus Roccus saxatilis Rocephin Rochelle powder Rochelle salt Rochelle salts Rochon prism Rock Cornish Rock Cornish hen Rock fever Rock of Gibraltar Rockingham podocarp Rocky Marciano Rocky Mountain bee plant Rocky Mountain bighorn Rocky Mountain bristlecone pine Rocky Mountain dogbane Rocky Mountain goat Rocky Mountain jay Rocky Mountain sheep Rocky Mountain spotted fever Rocky Mountain whitefish Rocky Mountains cherry Rocky mountain pinon Rocky-mountain maple Rocroi Rodentia Rodion Romanovich Raskolnikov Rodolia Rodolia cardinalis Rodya Raskolnikov Rogaine Rogation Day Rohypnol Rolaids Rolando's area Rolando's fissure Rollerblade Rolodex Romaic Romaic language Roman Roman Catholic Church Roman Catholicism Roman Church Roman Inquisition Roman Legion Roman Republic Roman alphabet Roman architecture Roman calendar Roman candle Roman collar Roman coriander Roman deity Roman hyacinth Roman law Roman mile Roman mythology Roman nettle Roman nose Roman numeral Roman pace Roman times Roman wormwood Romanal Romance Romance language Romanesque Romanesque architecture Romani Romanian Romanian language Romanian monetary unit Romanic Romanise Romanism Romanist Romanize Romans Romansh Romansh language Romantic Movement Romanticism Romany Romany language Rome Rome Beauty Romeo Rommany Romneya Romneya coulteri Romulus Ron Ron language Roneo Roneograph Rooseveltian Roquefort Roquefort dressing Roridulaceae Rorippa Rorippa amphibia Rorippa islandica Rorippa nasturtium-aquaticum Rorschach Rorschach test Rosa Rosa banksia Rosa canina Rosa chinensis Rosa damascena Rosa eglanteria Rosa laevigata Rosa moschata Rosa multiflora Rosa odorata Rosa pendulina Rosa spithamaea Rosaceae Rosales Rose of China Rosellinia Rosetta Stone Rosh Chodesh Rosh Hashana Rosh Hashanah Rosh Hashona Rosh Hashonah Rosh Hodesh Rosicrucian Rosicrucianism Rosidae Rosmarinus Rosmarinus officinalis Rossbach Rotarian Rotary Club Rotary International Rotifera Rottweiler Roumanian Round Table Rousseauan Royal Academy Royal Academy of Arts Royal Air Force Royal Canadian Mounted Police Royal National Eisteddfod Royal Society Royal Society of London for Improving Natural Knowledge Roystonea Roystonea oleracea Roystonea regia Ru Ruandan Rubia Rubia cordifolia Rubia tinctorum Rubiaceae Rubiales Rubicon Rubin test Rubus Rubus australis Rubus caesius Rubus canadensis Rubus chamaemorus Rubus cissoides Rubus cuneifolius Rubus flagellaris Rubus fruticosus Rubus hispidus Rubus idaeus Rubus idaeus strigosus Rubus loganobaccus Rubus occidentalis Rubus odoratus Rubus parviflorus Rubus phoenicolasius Rubus saxatilis Rubus spectabilis Rubus strigosus Rubus trivialis Rubus ursinus Rubus ursinus loganobaccus Rudbeckia Rudbeckia hirta Rudbeckia laciniata Rudbeckia laciniata hortensia Rudbeckia serotina Rudra Rufous rubber cup Rumanian Rumanian language Rumansh Rumansh language Rumex Rumex acetosa Rumex acetosella Rumex obtusifolius Rumex scutatus Ruminantia Rumohra Rumohra adiantiformis Rumpelstiltskin Rupicapra Rupicapra rupicapra Rupicola Rupicola peruviana Rupicola rupicola Ruptiliocarpon Ruptiliocarpon caracolito Ruritania Ruritanian Ruscaceae Ruscus Ruscus aculeatus Russell's body Russia Russia leather Russian Russian Orthodox Russian Orthodox Church Russian Revolution Russian agency Russian almond Russian bank Russian cactus Russian dandelion Russian dressing Russian language Russian mayonnaise Russian monetary unit Russian olive Russian roulette Russian thistle Russian tumbleweed Russian vine Russian wolfhound Russian-speaking Russianness Russo-Japanese War Russula Russulaceae Ruta Ruta graveolens Rutaceae Rutherford atom Rutilus Rutilus rutilus Ruvettus pretiosus Rwanda franc Rwandan Rydberg's penstemon Rynchopidae Rynchops Rypticus Ryukyuan Ryukyuan language rabato rabbet rabbet joint rabbet plane rabbi rabbinate rabbinic rabbinical rabbit rabbit bandicoot rabbit brush rabbit burrow rabbit bush rabbit ears rabbit fever rabbit food rabbit hole rabbit hutch rabbit on rabbit punch rabbit test rabbit warren rabbit's-foot fern rabbit-eared bandicoot rabbit-eye blueberry rabbit-sized rabbit-weed rabbiteye rabbiteye blueberry rabbitfish rabbitweed rabbitwood rabble rabble-rouser rabble-rousing rabid rabidity rabidly rabidness rabies raccoon raccoon dog raccoon fox race race car race driver race horse race meeting race murder race problem race riot race runner raceabout racecard racecourse racehorse raceme racemic acid racemose racer racerunner racetrack racetrack tout raceway rachet rachet up rachis rachischisis rachitic rachitis racial racial discrimination racial extermination racial immunity racial profiling racial segregation racialism racialist racially racily raciness racing racing boat racing car racing circuit racing gig racing shell racing skate racing skiff racing start racing yacht racism racist rack rack and pinion rack of lamb rack railway rack rent rack up racker racket racket club racketeer racketeering racketiness rackety racking racon raconteur racoon racquet racquetball racy rad radar radar beacon radar dome radar echo radar fire radar target raddle raddled radial radial artery radial asymmetry radial engine radial keratotomy radial nerve radial pulse radial symmetry radial tire radial vein radial velocity radial-ply radial-ply tire radially radially symmetrical radian radiance radiancy radiant radiant energy radiant flux radiant heating radiantly radiate radiating radiatio optica radiation radiation diagram radiation field radiation pattern radiation pressure radiation pyrometer radiation sickness radiation syndrome radiation therapy radiator radiator cap radiator grille radiator hose radical radical cell radical chic radical hysterectomy radical mastectomy radical sign radicalism radicalize radically radicchio radicle radiculitis radio radio aerial radio announcer radio antenna radio astronomy radio beacon radio beam radio brightness radio broadcast radio chassis radio compass radio detection and ranging radio dispatch radio drama radio emission radio frequency radio interferometer radio link radio news radio noise radio observation radio operator radio radiation radio receiver radio reflector radio set radio signal radio source radio spectrum radio station radio telescope radio theater radio theatre radio transmitter radio wave radio-controlled radio-controlled aircraft radio-frequency spectroscopy radio-frequency spectrum radio-gramophone radio-opacity radio-opaque radio-phonograph radioactive radioactive dating radioactive decay radioactive dust radioactive iodine excretion test radioactive iodine test radioactive iodine uptake test radioactive material radioactive waste radioactively radioactivity radioactivity unit radiobiologist radiobiology radiocarbon radiocarbon dating radiocarpal joint radiochemist radiochemistry radiochlorine radiocommunication radiogram radiograph radiographer radiographic radiography radioimmunoassay radioisotope radiolarian radiolocate radiolocation radiologic technologist radiological radiologist radiology radiolucent radiolysis radiometer radiomicrometer radiopacity radiopaque radiopaque dye radiopharmaceutical radiophone radiophonic radiophoto radiophotograph radiophotography radioprotection radioscopy radiosensitive radiosensitivity radiotelegraph radiotelegraphic signal radiotelegraphy radiotelephone radiotelephonic radiotelephony radiotherapist radiotherapy radiotherapy equipment radiothorium radish radish plant radium radium therapy radius radius of curvature radius vector radix radome radon raetam raffia raffia palm raffinose raffish raffishly raffle raffle off raft raft foundation rafter raftered raftman rafts raftsman raftswoman rag rag day rag doll rag gourd rag paper rag trade rag week ragamuffin ragbag rage ragee ragged ragged orchid ragged orchis ragged robin ragged-fringed orchid raggedly raggedness ragi raging raglan raglan sleeve ragout ragpicker ragpicker's disease ragsorter ragsorter's disease ragtag ragtag and bobtail ragtime ragweed ragweed pollen ragwort raid raider raiding rail rail against rail fence rail in rail line rail off rail technology rail-splitter railbird railcar railhead railing raillery railroad railroad bed railroad car railroad engineer railroad flat railroad line railroad man railroad siding railroad station railroad terminal railroad ticket railroad tie railroad track railroad train railroad tunnel railroad vine railroad woman railroad worm railroader railroading rails railway railway car railway junction railway line railway locomotive railway man railway station railway system railway woman railway yard railwayman railwaywoman railyard raiment raimentless rain rain barrel rain buckets rain cats and dogs rain check rain cloud rain dance rain date rain down rain forest rain gage rain gauge rain out rain shadow rain shower rain stick rain tree rain-wash rainbow rainbow cactus rainbow fish rainbow lorikeet rainbow perch rainbow pink rainbow runner rainbow seaperch rainbow shower rainbow smelt rainbow trout raincoat raindrop rainfall rainfly rainforest raininess raining rainless rainlessness rainmaker rainmaking rainproof rainstorm rainwater rainy rainy day rainy season raisable raise raise a stink raise hell raise the roof raise up raiseable raised raised doughnut raiser raisin raisin bran raisin bread raisin cookie raisin moth raisin-nut cookie raising raising agent raising hell raison d'etre raita raj raja rajah rajanya rake rake handle rake in rake off rake up rake-off rakehell rakish rakishly rakishness rale rallentando rally rally around rallying rallying cry rallying point ram ram down ram home ram's horn ram's-head ram's-head lady's slipper ramate ramble ramble on rambler rambling ramblingly rambotan rambunctious rambutan rambutan tree ramee ramekin ramequin ramie ramification ramify ramipril ramjet ramjet engine rammer ramona ramontchi ramose ramous ramp ramp up rampage rampageous rampant rampant arch rampantly rampart rampion rampion bellflower ramrod ramshackle ramus ranalian complex ranch ranch hand ranch house rancher ranching rancid rancidity rancidness rancor rancorous rancour rand random random access memory random memory random number generator random sample random sampling random walk random-access memory randomisation randomise randomised randomization randomize randomized randomly randomness randy ranee range range animal range finder range hood range in range of a function range of mountains range pole rangefinder rangeland ranger ranginess ranging ranging pole rangpur rangpur lime rangy rani ranid ranitidine rank rank and file rank order rank-difference correlation rank-difference correlation coefficient rank-order correlation rank-order correlation coefficient rank-smelling ranked ranker ranking rankle rankness ransack ransacked ransacking ransom ransom money ransomed ransomware rant ranter ranting ranula rap rap group rap music rap session rap sheet rapacious rapaciously rapaciousness rapacity rape rape conviction rape oil rape suspect raped raper rapeseed rapeseed oil raphe raphia rapid rapid climb rapid eye movement rapid eye movement sleep rapid growth rapid transit rapidity rapidly rapidness rapier rapine rapist rappee rappel rappeller rapper rapport rapporteur rapprochement rapscallion rapt raptor raptorial raptorial bird rapture rapturous rapturously raptus raptus hemorrhagicus rara avis rare rare bird rare earth rare-earth element rare-roasted rarebit raree-show rarefaction rarefied rarefy rarely rareness rarified rarify raring rariora rarity rascal rascality rascally rase rash rasher rashly rashness rasp rasp fern raspberry raspberry bush raspberry liqueur raspberry-red raspiness rasping raspingly raspy rassling raster raster font rasterize rat rat cheese rat chinchilla rat kangaroo rat race rat snake rat terrier rat typhus rat's-tail cactus rat-a-tat rat-a-tat-tat rat-catcher rat-tail file rat-tat ratability ratable ratables ratafee ratafia ratafia biscuit ratan rataplan ratatouille ratbite fever ratbite fever bacterium ratch ratchet ratchet down ratchet screwdriver ratchet wheel rate rate of attrition rate of depreciation rate of exchange rate of flow rate of growth rate of inflation rate of interest rate of pay rate of payment rate of respiration rate of return rateability rateable rateables rated voltage ratel ratepayer rates rather rather than rathole rathskeller ratification ratified ratifier ratify rating rating system ratio ratio analysis ratiocinate ratiocination ratiocinative ratiocinator ration ration card ration out rational rational motive rational number rationale rationalisation rationalise rationalise away rationalism rationalist rationalistic rationality rationalization rationalize rationalize away rationally rationalness rationed rationing ratite ratite bird ratlike ratlin ratline ratsbane rattail rattail cactus rattail fish rattan rattan cane rattan palm ratter ratting rattle rattle down rattle off rattle on rattle weed rattle-top rattlebox rattlebrained rattled rattlepated rattler rattlesnake rattlesnake fern rattlesnake master rattlesnake orchid rattlesnake plantain rattlesnake root rattlesnake weed rattlesnake's master rattling rattrap ratty raucous raucously rauli beech raunch raunchy rauvolfia rauwolfia ravage ravaged ravaging rave rave-up ravehook ravel ravel out raveling ravelling raven ravenala ravening ravenous ravenously ravenousness raver ravigote ravigotte ravine raving raving mad ravingly ravioli ravish ravisher ravishing ravishingly ravishment raw raw beauty raw data raw deal raw material raw meat raw milk raw recruit raw sienna raw talent raw throat raw umber raw vegetable raw weather raw wood raw wool raw wound rawboned rawhide rawness ray ray floret ray flower ray of light rayless rayless chamomile rayon rayon stocking rayons razbliuto raze razed razing razmataz razor razor clam razor edge razor fish razor-backed razor-billed auk razor-fish razor-sharp razorback razorback hog razorbacked hog razorbill razorblade razz razzing razzle razzle-dazzle razzmatazz rbi re-address re-afforest re-afforestation re-argue re-arm re-assume re-create re-created re-creation re-echo re-elect re-emerge re-emphasise re-emphasize re-enter re-entrant re-equip re-establishment re-examine re-experiencing re-explain re-explore re-formation re-formed re-incorporate re-introduce re-introduction re-sentencing re-start re-uptake reabsorb reabsorption reach reach for reach into reach one's nostrils reach out reach out to reachable reaching reacquired stock react reactance reactant reaction reaction engine reaction formation reaction propulsion reaction time reaction turbine reaction-propulsion engine reactionary reactionism reactionist reactivate reactive reactive depression reactive schizophrenia reactivity reactor read read between the lines read off read-only file read-only memory read-only memory chip read-only storage read-out read/write head read/write memory readability readable readably readapt reader readership readily readiness reading reading assignment reading clinic reading desk reading lamp reading material reading program reading room reading teacher readjust readjustment readmission readmit readout ready ready and waiting ready cash ready money ready reckoner ready to hand ready-cooked ready-made ready-mix ready-to-eat ready-to-wear readying reaffiliation reaffirm reaffirmation reagent reagin real real GNP real McCoy real estate real estate agent real estate broker real estate loan real gross national product real life real matrix real number real power real presence real property real socialism real storage real stuff real talk real tennis real thing real time real world real-estate real-estate business real-time real-time operation real-time processing realgar realign realine realisation realise realised realism realist realistic realistically reality reality check reality principle reality television realizable realization realize realized reallocate reallocation reallot reallotment really realm realness realpolitik realtor realty real‐life ream reamer reanimate reanimated reap reap hook reaper reaper binder reaping hook reappear reappearance reapportion reapportionment reappraisal reappraise rear rear admiral rear back rear end rear lamp rear light rear of barrel rear of tube rear window rear-end rearguard rearing rearm rearmament rearmost rearrange rearrangement rearview mirror rearward rearwards reason reason out reasonable reasonable care reasonableness reasonably reasoned reasoner reasoning reasoning backward reasoning by elimination reasonless reassail reassemble reassembly reassert reassertion reassess reassessment reassign reassignment reassurance reassure reassured reassuring reassuringly reata reattribute reave reawaken rebarbative rebate rebato rebel rebellion rebellious rebelliously rebelliousness rebind rebirth reboot reborn rebound rebound tenderness reboxetine rebozo rebroadcast rebuff rebuild rebuilding rebuke rebuker rebukingly reburial rebury reburying rebus rebut rebuttal rebutter rec room recalcitrance recalcitrancy recalcitrant recalcitrate recalculate recalculation recall recall doing recall dose recant recantation recap recapitulate recapitulation recapture recast recasting recce recco reccy recede receding receipt receipts receivable receivables receive received receiver receiver-creditor relation receivership receiving set receiving system recency recent recently recentness receptacle reception reception desk reception line reception room receptionist receptive receptive aphasia receptively receptiveness receptivity receptor recess recessed recession recessional recessional march recessionary recessive recessive allele recessive gene recharge rechargeable rechauffe recherche rechewed food recidivate recidivism recidivist recipe recipient recipient role reciprocal reciprocal cross reciprocal inhibition reciprocal ohm reciprocal pronoun reciprocal-inhibition therapy reciprocality reciprocally reciprocate reciprocating engine reciprocating saw reciprocation reciprocative reciprocatory reciprocity recirculation recission recital recitalist recitation recitative recite reciter reckless recklessly recklessness reckon reckon on reckoner reckoning reclaim reclaimable reclaimed reclamation reclassification reclassify recline recliner reclining reclining chair recluse reclusive reclusiveness recode recoding recognisable recognisance recognise recognised recognition recognizable recognizably recognizance recognize recognized recoil recoilless recollect recollection recollective recombinant recombinant DNA recombinant DNA technology recombinant deoxyribonucleic acid recombinant human insulin recombinant protein recombination recombine recommence recommencement recommend recommendation recommit recompense reconcilable reconcile reconciled reconciler reconciliation reconciling recondite reconditeness recondition reconfirm reconnaissance reconnaissance by fire reconnaissance in force reconnaissance mission reconnaissance plane reconnaissance vehicle reconnoiter reconnoitering reconnoitre reconnoitring reconquer reconsecrate reconsider reconsideration reconstitute reconstruct reconstructed reconstruction reconstructive reconstructive memory reconstructive surgery reconvene reconvert reconvict recopy record record album record book record changer record company record cover record hop record jacket record player record sleeve record-breaker record-breaking record-holder record-keeper recorded recorder recorder player recording recording company recording equipment recording label recording machine recording studio recording system recount recounting recoup recourse recover recover from recoverable recovered recoverer recovering recovery recovery room recreant recreate recreation recreation facility recreation room recreational recreational drug recreational facility recreational vehicle recriminate recrimination recriminative recriminatory recrudesce recrudescence recrudescent recruit recruiter recruiting-sergeant recruitment rectal rectal artery rectal reflex rectal vein rectangle rectangular rectangularity rectifiable rectification rectified rectifier rectifier diode rectify rectifying tube rectifying valve rectilineal rectilinear rectilinear regression rectilinearity rectitude recto rectocele rectoplasty rector rectorate rectorship rectory rectosigmoid rectum rectus rectus inferior rectus lateralis rectus medialis rectus superior recumb recumbent recuperate recuperation recuperative recur recurrence recurrent recurrent event recurrent fever recurrently recurring recurring decimal recursion recursive recursive definition recursive routine recurvate recurve recurved recusal recusancy recusant recusation recuse recyclable recycle recycled recycling recycling bin recycling plant red red Bordeaux red Clintonia red admiral red alder red alert red algae red amaranth red angel's trumpet red ash red baneberry red bat red bay red bearberry red beech red birch red bird's eye red blood cell red bone marrow red brass red bryony red buckeye red cabbage red campion red carpet red cedar red cent red chalk red clay red clover red cole red coral red currant red cypress pine red dagga red deer red devil red dogwood red drum red dwarf red dwarf star red eft red elm red false mallow red fire red flag red fox red giant red giant star red ginger red goatfish red goosefoot red gram red grouse red gum red haw red heat red helleborine red herring red hot red ink red jungle fowl red juniper red kauri red lauan red lauan tree red laver red lead red light red line red maids red man red maple red marrow red meat red morning-glory red mulberry red mullet red oak red onion red osier red osier dogwood red panda red pepper red periwinkle red phalarope red pimpernel red pine red poll red porgy red raspberry red rat snake red region red rockfish red salmon red sandalwood red sanders red sanderswood red saunders red scare red setter red shift red shrubby penstemon red silk cotton red silk-cotton tree red silver fir red siskin red snapper red sorrel red spider red spider mite red sprites red spruce red squirrel red tape red tide red trillium red underwing red valerian red water red willow red wine red wolf red woman red worm red-backed lemming red-backed mouse red-backed sandpiper red-bellied snake red-bellied terrapin red-bellied turtle red-berried elder red-berry red-blind red-blindness red-blooded red-breasted merganser red-breasted nuthatch red-breasted sapsucker red-breasted snipe red-brick red-brown red-carpet red-coated red-eye red-eyed vireo red-faced red-flowered red-flowered silky oak red-fruited red-gray red-green color blindness red-green colour blindness red-green dichromacy red-grey red-handed red-header red-hot red-hot poker red-ink red-lavender red-lead putty red-legged partridge red-letter red-letter day red-light district red-necked grebe red-orange red-purple red-rimmed red-shafted flicker red-shouldered hawk red-skinned onion red-spotted purple red-streaked red-striped red-tailed hawk red-veined pie plant red-violet red-winged blackbird redact redaction redactor redback vole redbelly redberry redbird redbird cactus redbird flower redbone redbreast redbrick redbrick university redbrush redbud redbug redcap redcoat redden reddened reddish reddish blue reddish brown reddish orange reddish purple reddish-brown reddish-gray reddish-grey reddish-lavender reddish-orange reddish-pink reddish-purple reddish-striped reddish-violet reddishness reddle rede redecorate rededicate rededication redeem redeemable redeemed redeemer redeeming redefine redefinition redemption redemptional redemptive redemptory redeploy redeployment redeposit redeposition redesign redetermination redetermine redevelop redevelopment redevelopment authority redeye redeye flight redfin pickerel redfish redhead redheaded redheaded woodpecker redheader redhorse redhorse sucker redirect redirect examination rediscover rediscovery redispose redisposition redistribute redistributed redistribution redline redly redmaids redneck redness redo redolence redolent redouble redoubled redoubt redoubtable redound redox redpoll redraft redress redroot redshank redshift redstart redstem storksbill redtail reduce reduced reduced instruction set computer reduced instruction set computing reduced vowel reducer reducible reducing reducing agent reducing diet reductant reductase reductio reductio ad absurdum reduction reduction division reduction gear reductionism reductionist reductive reductivism redundance redundancy redundancy check redundant reduplicate reduplication reduviid redux redwing redwood redwood family redwood penstemon reecho reechoing reed reed bunting reed canary grass reed grass reed instrument reed mace reed meadow grass reed organ reed pipe reed rhapis reed section reed stop reedbird reedlike reedmace reedy reef reef knot reef line reef point reef squirrelfish reef whitetip shark reefer reefing line reefy reek reeking reel reel off reelect reelection reeler reenact reenactment reenactor reenforce reenforcement reenlistment reentering angle reentering polygon reentrant reentrant angle reentrant polygon reentry reestablish reevaluate reevaluation reeve reexamination reexamine ref refabrication reface refashion refection refectory refectory table refer refer to referable referee refereeing reference reference book reference frame reference grid reference manual reference point reference system reference work referenced referendum referent referential referral referred pain refill refilling refinance refine refined refined sugar refinement refiner refinery refining refining industry refinish refinisher refit reflate reflation reflect reflect on reflectance reflected reflecting reflecting telescope reflection reflection factor reflective reflective power reflectively reflectiveness reflectivity reflectometer reflector reflectorise reflectorize reflex reflex action reflex angle reflex arc reflex camera reflex epilepsy reflex response reflexed reflexion reflexive reflexive pronoun reflexive verb reflexively reflexiveness reflexivity reflexly reflexology refloat reflux reflux condenser refocus refocusing reforest reforestation reforge reform reform movement reform school reform-minded reformable reformation reformative reformatory reformed reformer reformism reformist reformulate refract refractile refracting telescope refraction refractive refractive index refractiveness refractivity refractometer refractoriness refractory refractory anaemia refractory anemia refractory period refractory pot refractory-lined refracture refrain refrain from refresh refreshed refreshen refresher refresher course refreshful refreshfully refreshing refreshingly refreshment refried beans refrigerant refrigerant dryer refrigerate refrigerated refrigerating refrigeration refrigeration dryer refrigeration system refrigerator refrigerator car refrigerator cookie refuel refueling refuge refugee refugee camp refulgence refulgency refulgent refund refundable refurbish refurbishment refurnish refusal refuse refuse collector refuse heap refuse to do refutable refutal refutation refute refuter regain regaining regal regale regalia regally regard regard as regardant regardful regarding regardless regatta regency regenerate regenerating regeneration regent regest reggae regicide regift regime regimen regiment regimental regimentally regimentals regimentation regimented region regional regional anaesthesia regional anatomy regional anesthesia regional enteritis regional ileitis regionalism regionality regionally register register for register language registered registered bond registered mail registered nurse registered post registered representative registered security registrant registrar registration registration fire registration number registry regnant regnellidium regorge regosol regram regress regression regression analysis regression coefficient regression curve regression equation regression line regression of y on x regression toward the mean regressive regret regret doing regret to do regretful regretfully regrets regrettable regrettably regroup regrow regular regular army regular convex polyhedron regular convex solid regular dodecahedron regular hexagon regular hexahedron regular icosahedron regular octahedron regular payment regular pentagon regular polygon regular polyhedron regular prism regular pyramid regular recurrence regular tetrahedron regularisation regularise regularity regularization regularize regularly regulate regulated regulating regulation regulation time regulative regulator regulator gene regulatory regulatory agency regulatory authority regulatory gene regulatory offence regulatory offense regur regur soil regurgitate regurgitation rehabilitate rehabilitation rehabilitation program rehabilitative reharmonisation reharmonise reharmonization reharmonize rehash rehear rehearing rehearsal rehearse reheat reheel rehouse reification reify reign reigning reignite reimburse reimbursement reimpose reimposition rein rein in rein orchid rein orchis reincarnate reincarnation reincarnationism reindeer reindeer lichen reindeer moss reinforce reinforced reinforced concrete reinforcement reinforcer reinforcing stimulus reinstall reinstate reinstatement reinsurance reinsure reintegrate reinterpret reinterpretation reintroduce reintroduction reinvent reinvestment reinvigorate reinvigorated reissue reiterate reiteration reiterative reject rejected rejection rejective rejig rejoice rejoicing rejoin rejoinder rejuvenate rejuvenation rejuvenescence rekindle relace relapse relapsing relapsing fever relatable relate relate to related related to relatedness relation relation back relational relational adjective relational database relational database management system relations relationship relative relative atomic mass relative clause relative density relative frequency relative humidity relative incidence relative majority relative molecular mass relative motion relative price relative pronoun relative quantity relative speed relative velocity relative-in-law relatively relativisation relativise relativism relativistic relativistic mass relativistically relativity relativity theory relativization relativize relatum relax relaxant relaxation relaxation behavior relaxation method relaxation time relaxed relaxedness relaxer relaxin relaxing relay relay link relay race relay station relay transmitter relearn release releasing releasing factor releasing hormone relegate relegating relegation relent relentless relentlessly relentlessness relevance relevancy relevant relevantly reliability reliable reliableness reliably reliance reliant relic relict relief relief map relief pitcher relief printing relief valve relieve relieve oneself relieved reliever relievo religion religionism religionist religiosity religious religious belief religious ceremony religious cult religious doctrine religious festival religious holiday religious leader religious movement religious music religious mystic religious mysticism religious offering religious order religious orientation religious outcast religious person religious residence religious right religious rite religious ritual religious school religious sect religious service religious song religious text religious trance religious writing religiousism religiously religiousness reline relinquish relinquished relinquishing relinquishment reliquary relish relishing relistening relive reliving reload relocatable program relocate relocated relocation reluctance reluctant reluctantly reluctivity rely rely on rely upon relyric rem remain remain down remain firm remain to be remainder remaining remains remake remaking remand remark remarkable remarkably remarriage remarry rematch remediable remedial remediate remediation remedy remember remember oneself remembering remembrance remilitarisation remilitarise remilitarization remilitarize remind reminder remindful reminisce reminiscence reminiscent reminiscently remise remiss remission remission of sin remissness remit remitment remittal remittance remittance man remittance person remittance woman remittent remnant remodel remold remonstrance remonstrate remonstration remora remorse remorseful remorsefully remorseless remorselessly remote remote control remote station remote terminal remote-access data processing remote-control bomb remote-controlled remotely remoteness remotion remoulade sauce remould remount removability removable removable disk removal removal company removal firm remove removed remover remuda remunerate remunerated remuneration remunerative remunerator renal renal artery renal calculus renal colic renal corpuscle renal cortex renal disorder renal failure renal insufficiency renal lithiasis renal pelvis renal vein rename renascence renascent rend render render-set rendering rendering machine rendezvous rending rendition renegade renegade state renege renege on renegociate renegotiate renegue on renew renewable renewable energy industry renewable resource renewal renewed renewing reniform reniform leaf renin rennet rennin renormalise renormalize renounce renouncement renovate renovation renovator renown renowned rensselaerite rent rent collector rent out rent seeking rent-a-car rent-free rent-rebate rent-roll rent-seeking rentable rental rental collection rental income rente renter rentier renting renunciant renunciation renunciative reopen reorder reordering reorganisation reorganise reorganised reorganization reorganize reorganized reorient reorientate reorientation reovirus rep repaint repair repair shed repair shop repairer repairman repairperson repairwoman repand reparable reparation repartee repast repatriate repatriation repay repayable repayment repayment rate repeal repeat repeatable repeated repeatedly repeater repeating repeating decimal repeating firearm repechage repel repellant repellent repellently repelling repellingly repent repentance repentant repentantly repercuss repercussion repertoire repertory repertory company repetition repetitious repetitiousness repetitive repetitively repetitiveness rephrase rephrasing repine replace replaceability replaceable replacement replacement cost replacing replant replay replenish replenishment replete repletion replica replicate replication reply reply to reply-paid repoint report report card report out report to reportable reportage reported reportedly reporter reporting reporting weight repose repose on reposeful reposit repositing reposition repositioning repository repossess repossession repost repot repp reprehend reprehensibility reprehensible reprehensibly reprehension reprehensively represent representable representation representational representational process representative representative sample representative sampling represented repress repressed represser repressing repression repressive repressor repressor gene reprieve reprimand reprint reprinting reprisal reprise reprize reproach reproacher reproachful reproachfully reprobate reprobation reprocess reproduce reproducer reproducibility reproducible reproducibly reproduction reproduction cost reproductive reproductive cell reproductive cloning reproductive memory reproductive organ reproductive structure reproductive system reproof reproval reprove reprover reproving reprovingly reptile reptile family reptile genus reptilian republic republican republicanism republication republish republishing repudiate repudiation repudiative repugn repugnance repugnant repulse repulsion repulsive repulsive force repulsively repulsiveness repulsor repulsorlift repulsorlift engine repurchase reputability reputable reputably reputation repute reputedly request requested requester requiem requiem shark requiescat require required required course required reserve ratio requirement requirements contract requisite requisiteness requisition requisition form requital requite requote reread rerebrace reredos rerun res adjudicata res gestae res ipsa loquitur res judicata res publica resale rescale reschedule rescind rescindable rescission rescript rescue rescue equipment rescue operation rescue party rescued rescuer reseal research research center research colloquium research director research facility research lab research laboratory research project research rocket research staff research worker researcher reseat reseau resect resection reseda reseed resell resemblance resemble resent resentful resentfully resentment reserpine reservation reserve reserve account reserve assets reserve bank reserve clause reserve fund reserve ratio reserved reservedly reserves reservist reservoir reset reset button resettle resettled resettlement resew resh reshape reship reshipment reshoot reshuffle reshuffling resid reside reside in residence residence hall residence time residency resident resident commissioner resident physician residential residential area residential district residentially residual residual clay residual oil residual soil residual standard deviation residuary residue residuum resift resign resignation resignedly resile resilience resiliency resilient resin resinate resinated resinlike resinoid resinous resiny resist resistance resistance furnace resistance pyrometer resistance thermometer resistance unit resistant resister resistible resisting arrest resistive resistivity resistless resistor resize resmudge resole resolute resolutely resoluteness resolution resolvable resolve resolved resolvent resolving resolving power resonance resonant resonant circuit resonate resonating resonating chamber resonator resorb resorcinol resorcinolphthalein resorption resort resort area resort hotel resound resounding resoundingly resource resourceful resourcefully resourcefulness resourceless respect respectability respectable respectably respected respecter respectful respectfully respectfulness respective respectively respects respiration respirator respiratory respiratory acidosis respiratory alkalosis respiratory center respiratory disease respiratory disorder respiratory distress syndrome respiratory distress syndrome of the newborn respiratory illness respiratory infection respiratory organ respiratory quotient respiratory rate respiratory syncytial virus respiratory system respiratory tract respiratory tract infection respire respite resplend resplendence resplendency resplendent resplendent quetzel resplendent trogon resplendently respond respond to respondent responder response response time responsibility responsible responsible for responsibleness responsibly responsive responsiveness rest rest area rest day rest energy rest home rest house rest mass rest on rest period rest stop rest-cure rest-harrow restart restate restatement restaurant restaurant attendant restaurant chain restauranter restaurateur rested rester restful restfully restfulness restharrow resting potential resting spore restitute restitution restive restively restiveness restless restless legs restless legs syndrome restlessly restlessness restock restoration restorative restore restorer restrain restrained restrainer restraint restraint of trade restrengthen restrict restricted restricting restriction restriction endonuclease restriction enzyme restriction fragment restriction nuclease restriction site restrictive restrictive clause restrictively restrictiveness restroom restructure resublime resubmit result result from result in resultant resultant role resulting resulting trust resume resumption resupine resurface resurge resurgence resurgent resurrect resurrection resurrection fern resurrection plant resurvey resuscitate resuscitated resuscitation resuscitator resuspend resuspension ret retail retail chain retail market retail merchant retail price retail price index retail store retailer retailing retain retained retained object retainer retaining wall retake retaking retaliate retaliation retaliative retaliator retaliatory retaliatory eviction retaliatory tariff retard retardant retardation retarded retarded blowback retarded depression retardent retarding force retch rete rete Malpighii rete testis retell retem retention retention basin retentive retentively retentiveness retentivity rethink reticence reticent reticently retick reticle reticular reticular activating system reticular formation reticulate reticulated python reticulation reticule reticulocyte reticuloendothelial system reticulum retie retina retinal retinal cone retinal detachment retinal purple retinal rod retinal scanning retinene retinitis retinoblastoma retinol retinopathy retinue retire retired retired person retiree retirement retirement account retirement benefit retirement check retirement community retirement complex retirement fund retirement pension retirement plan retirement program retirement savings account retirement savings plan retiring retool retort retouch retrace retract retractable retracted retractile retraction retractor retractor muscle retrain retraining retral retranslate retransmit retread retreat retreatant retreated retrench retrenchment retrial retribution retributive retributory retrievable retrieval retrieve retriever retro retroactive retroactively retrobulbar neuritis retrofit retroflection retroflex retroflexed retroflexion retrogaming retrograde retrograde amnesia retrogress retrogression retrogressive retromandibular vein retronym retrorocket retrorse retrospect retrospection retrospective retrospectively retrousse retroversion retrovert retrovirus retrovision retry retsina rettery return return address return home return key return on invested capital return on investment return ticket returnable returnee returning returning officer reunification reunify reunion reunite reuptake reusable reusable program reusable routine reuse rev rev up revaluation revaluation reserve revalue revamp reveal revealed religion revealing reveille revel revel in revelation revelatory reveler reveller revelry revenant revenge revengeful revengefully revenue revenue bond revenue enhancement revenue sharing revenue stamp revenue tariff revenuer reverberance reverberant reverberate reverberating reverberation reverberative reverberatory furnace revere revered reverence reverend reverent reverential reverentially reverently reverie revers reversal reverse reverse Polish notation reverse fault reverse gear reverse hang reverse lightning reverse osmosis reverse split reverse stock split reverse transcriptase reverse transcriptase inhibitor reversed reversely reversibility reversible reversible process reversibly reversing thermometer reversion reversionary reversionary annuity reversioner reversionist reversive revert revert to revertible reverting revery revet revetement revetment review review article review copy reviewer reviewing stand revile revilement revisal revise revised reviser revising revision revisionism revisionist revisit revitalisation revitalise revitalised revitalising revitalization revitalize revitalized revitalizing revival revival meeting revivalism revivalist revivalistic revive revived revivification revivify reviving revocable revocation revokable revoke revolt revolting revoltingly revolution revolutionariness revolutionary revolutionary group revolutionise revolutionism revolutionist revolutionize revolutions per minute revolve revolve about revolve around revolved revolver revolving revolving charge account revolving credit revolving door revolving fund revue revulsion rewa-rewa reward rewardful rewarding rewardingly rewatch rewind rewire reword rewording rework rewrite rewrite man rewrite woman rewriter rewriting rex begonia rezoning fee rh-negative rh-positive rhabdomancer rhabdomancy rhabdomyoma rhabdomyosarcoma rhabdosarcoma rhabdovirus rhagades rhaphe rhapsodic rhapsodically rhapsodise rhapsodize rhapsody rhea rhenium rheologic rheological rheology rheometer rheostat rhesus rhesus factor rhesus monkey rhetoric rhetorical rhetorical accent rhetorical device rhetorical language rhetorical question rhetorically rhetorician rheum rheumatic rheumatic aortitis rheumatic fever rheumatic heart disease rheumatism rheumatism weed rheumatoid rheumatoid arthritis rheumatoid factor rheumatoid spondylitis rheumatologist rheumatology rheumy rhinal rhinencephalon rhinestone rhinion rhinitis rhino rhinoceros rhinoceros beetle rhinoceros family rhinolaryngologist rhinolaryngology rhinopathy rhinophyma rhinoplasty rhinorrhea rhinoscope rhinoscopy rhinosporidiosis rhinostenosis rhinotomy rhinotracheitis rhinovirus rhizoctinia rhizoctinia disease rhizoid rhizoidal rhizomatous rhizomatous begonia rhizome rhizomorph rhizopod rhizopodan rhizopus rhizotomy rho rhodanthe rhodium rhodochrosite rhododendron rhodolite rhodomontade rhodonite rhodopsin rhomb rhombencephalon rhombic rhombohedral rhombohedron rhomboid rhomboid minor muscle rhomboid muscle rhomboidal rhomboideus major muscle rhombus rhonchus rhubarb rhubarb pie rhubarb plant rhumb rhumb line rhumba rhyme rhyme royal rhymed rhymeless rhymer rhymester rhyming rhyming slang rhyolite rhythm rhythm and blues rhythm and blues musician rhythm method rhythm method of birth control rhythm section rhythmic rhythmic pattern rhythmical rhythmically rhythmicity rhytidectomy rhytidoplasty rial riant riata rib rib cage rib joint pliers rib roast ribald ribaldry riband ribavirin ribband ribbed ribbed toad ribbed vault ribbing ribbon ribbon development ribbon fern ribbon grass ribbon snake ribbon tree ribbon worm ribbon-leaved water plantain ribbon-shaped ribbonfish ribbonlike ribbonwood ribbony ribgrass ribier ribless riblike riboflavin ribonuclease ribonucleic acid ribonucleinase ribose ribosome ribwort rice rice beer rice cooker rice grass rice paddy rice paper rice rat rice soup rice steamer rice weevil rice-grain fritillary ricebird ricegrass ricer rich rich man rich people rich person rich woman riches richly richness richweed ricin ricin toxin ricinoleic acid rick ricketiness rickets rickettsia rickettsial rickettsial disease rickettsialpox rickettsiosis rickety rickey rickrack ricksha rickshaw ricochet ricotta ricrac rictus rid rid of riddance riddle riddle canon riddled ride ride away ride herd ride horseback ride off ride on ride out ride roughshod ride the bench rider rider plate ridge ridge rope ridge tile ridged ridgel ridgeline ridgeling ridgepole ridgil ridgling ridicule ridiculer ridiculous ridiculously ridiculousness riding riding bitt riding boot riding breeches riding crop riding habit riding horse riding lamp riding light riding master riding mower riding school ridley riel rifampin rife riff riffle riffraff rifle rifle ball rifle butt rifle grenade rifle range rifle shot riflebird rifled rifleman rifleman bird rifler riflewoman rifling rift rift valley rig rig out rig up rigamarole rigatoni rigged rigger rigger brush rigging right right along right angle right ascension right atrioventricular valve right atrium right atrium of the heart right away right brain right coronary artery right field right fielder right gastric artery right gastric vein right hand right hander right hemisphere right now right of action right of election right of entry right of first publication right of offset right of privacy right of re-entry right of search right of way right on right prism right smart right stage right to an attorney right to candidacy right to confront accusors right to due process right to liberty right to life right to privacy right to speedy and public trial by jury right to the pursuit of happiness right to vote right triangle right ventricle right whale right wing right-angled right-angled triangle right-down right-eyed right-hand right-hand man right-hand woman right-handed right-handed pitcher right-handedness right-hander right-minded right-side-out right-side-up right-wing right-winger righteous righteously righteousness righteye flounder righteyed flounder rightfield rightful rightfully rightfulness righthander rightish rightism rightist rightly rightmost rightness rights issue rights offering rigid rigidification rigidify rigidifying rigidity rigidly rigidness rigmarole rigor rigor mortis rigorous rigorously rigorousness rigour rigourousness rigout rijstafel rijstaffel rijsttaffel rile riled rilievo rill rim rim blight rima rima glottidis rima oris rima pudendi rima respiratoria rima vestibuli rima vocalis rima vulvae rime rimed rimeless riming rimless rimmed rimose rimu rimy rind rinderpest ring ring armor ring armour ring blackbird ring containment ring dance ring disease ring finger ring girl ring mail ring of color ring out ring ouzel ring road ring rot ring rot bacteria ring rot fungus ring snake ring thrush ring up ring vaccination ring-a-rosy ring-around-a-rosy ring-around-the-rosy ring-binder ring-necked parakeet ring-necked pheasant ring-necked snake ring-shaped ring-stalked fungus ring-tailed cat ring-tailed lemur ringdove ringed ringed snake ringer ringgit ringhals ringing ringleader ringlet ringlet butterfly ringleted ringlike ringmaster ringneck snake rings ringside ringside seat ringtail ringway ringworm ringworm bush ringworm cassia ringworm shrub rink rinkhals rinse rinse off rinsing riot riot act riot control riot control operation riot gun rioter rioting riotous riotously rip rip current rip into rip off rip out rip through rip up rip-off rip-roaring riparian riparian forest riparian right ripcord ripe ripe olive ripely ripen ripened ripeness ripening riposte ripped ripper ripping ripping bar ripping chisel ripple ripple mark ripple-grass rippled rippling ripsaw riptide rise rise above rise to power rise up risen riser riser main riser pipe riser pipeline risibility risible rising rising prices rising slope rising tide rising trot risk risk arbitrage risk capital risk group risk of exposure risk of infection risk taker risk-free riskily riskiness riskless risklessness risky risky venture risotto risque rissole rit. ritardando rite rite of passage ritenuto ritonavir ritual ritual dance ritual dancing ritual killing ritualise ritualism ritualist ritualistic ritualize ritually ritz ritzy rival rivalrous rivalry rive river river basin river birch river blindness river boat river bottom river boulder river cooter river dolphin river gum river horse river limpet river otter river pear river prawn river red gum river shad riverbank riverbed riverside rivet rivet clincher rivet line riveter riveting riveting machine rivetter rivulet rivulus riyal riyal-omani roach roach clip roach holder road road agent road builder road construction road game road gang road hog road map road mender road metal road rage road roller road runner road sense road show road surface road test road to Damascus roadbed roadblock roadbook roadhog roadhouse roadkill roadless roadman roadrunner roads roadside roadstead roadster roadway roadwoman roadworthiness roam roamer roan roar roar off roarer roaring roast roast beef roast beef plant roast lamb roast pork roast veal roasted roaster roasting rob robalo robber robber fly robber frog robbery robbery conviction robbery suspect robe robe-de-chambre robed robin robin redbreast robin's plantain roble roble beech robocall robot robot bomb robot pilot robotic robotic telesurgery robotics robotics equipment robotlike robust robusta coffee robustious robustly robustness roc rocambole roccella rock rock 'n' roll rock 'n' roll musician rock and roll rock band rock barnacle rock bass rock beauty rock bit rock bottom rock brake rock cake rock candy rock climber rock climbing rock concert rock crab rock cress rock crystal rock dove rock drill rock elm rock garden rock geranium rock group rock gunnel rock harlequin rock hind rock hopper rock hyrax rock kangaroo rock lobster rock maple rock music rock oil rock opera rock outcrop rock partridge rock penstemon rock pigeon rock pink rock plant rock polypody rock purslane rock python rock rabbit rock rattlesnake rock rose rock salmon rock salt rock sandwort rock sea bass rock snake rock spikemoss rock squirrel rock star rock sugar rock sunfish rock wallaby rock wool rock wren rock'n'roll rock-and-roll rock-bottom rock-climbing equipment rock-inhabiting rock-loving rock-ribbed rock-steady rockabilly rockbound rockchuck rockcress rocker rocker arm rockers rockery rocket rocket base rocket cress rocket engine rocket engineer rocket firing rocket fuel rocket larkspur rocket launcher rocket launching rocket propellant rocket propellent rocket propulsion rocket range rocket salad rocket scientist rocket-propelled rocketry rockfish rockfoil rockiness rocking chair rocking horse rocklike rockrose rockrose family rockslide rockweed rocky rococo rod rod cell rod puppet rod-shaped rodent rodeo rodeo rider rodlike rodomontade roe roe deer roebuck roentgen roentgen ray roentgenium roentgenogram roentgenographic roentgenography roentgenoscope rofecoxib rogation rogue rogue elephant rogue nation rogue state rogue's gallery roguery roguish roguishly roguishness roil roiled roiling roily roister roisterer role role model role player roleplay roleplaying roll roll around roll call roll down roll film roll in roll in the hay roll of tobacco roll off roll out roll over roll up roll-on roll-on roll-off rollback rolled rolled biscuit rolled into one rolled oats roller roller bandage roller bearing roller bit roller blind roller coaster roller ironer roller skate roller skating roller ski roller towel roller-skater rollerblader rollerblading rollick rollicking rollickingly rolling rolling hitch rolling mill rolling paper rolling pin rolling stock rolling wave rollmops rollover roly-poly roly-poly pudding rolypoliness romaic romaine romaine lettuce roman roman a clef roman fleuve roman letters roman print roman type romance romantic romantic realism romantically romanticisation romanticise romanticist romanticistic romanticization romanticize romish romp romper romper suit rondeau rondel rondelet rondo roneo rood rood screen rood-tree roof roof garden roof mushroom roof of the mouth roof peak roof rack roof rat roofed roofer roofing roofing material roofing paper roofing tile roofless rooftop rooftree roofy rooibos rook rookery rookie room room access room clerk room decorator room light room rate room temperature roomer roomette roomful roomie roomily roominess rooming house roommate rooms roomy roost rooster root root beer root beer float root canal root cap root celery root cellar root climber root crop root for root hair root on root out root rot root system root vegetable root word rootage rootbound rooted rooter rooter skunk rooting rooting reflex rootle rootless rootlet roots rootstalk rootstock rope rope bridge rope burn rope down rope in rope ladder rope off rope tow rope up rope yard rope yarn rope-a-dope rope-maker ropebark ropedancer ropemaker roper ropewalk ropewalker ropeway ropey rophy ropiness roping ropy roquette roridula rorqual rosacea rosaceous rosary rose rose acacia rose apple rose bay rose bed rose beetle rose bug rose campion rose chafer rose chestnut rose family rose garden rose geranium rose globe lily rose gum rose hip rose leek rose mallow rose moss rose of Jericho rose of Sharon rose oil rose periwinkle rose pink rose quartz rose water rose window rose wine rose-apple tree rose-cheeked rose-colored rose-colored pastor rose-colored starling rose-lavender rose-lilac rose-mauve rose-purple rose-red rose-root rose-tinged rose-tinted roseate roseate spoonbill rosebay rosebay willowherb rosebud rosebud cherry rosebud orchid rosebush rosefish rosehip roselle rosemaling rosemary roseola roseola infantilis roseola infantum rosette rosewood rosewood tree rosid dicot family rosid dicot genus rosilla rosin rosin bag rosiness rosinweed rosita roster rostrate rostrum rosy rosy boa rosy-cheeked rosy-colored rosy-purple rot rot-resistant rota rotary rotary actuator rotary converter rotary encoder rotary engine rotary harrow rotary joint rotary motion rotary press rotary wing rotatable rotate rotated rotating rotating mechanism rotating shaft rotation rotational rotational latency rotational nystagmus rotationally rotator cuff rotatory rotatory joint rotavirus rote rote learning rotenone rotgut rotifer rotisserie rotl rotogravure rotor rotor blade rotor coil rotor head rotor shaft rotted rotten rotten borough rottenly rottenness rottenstone rotter rotting rotund rotunda rotundity rotundly rotundness rouble roue rouge rouge et noir rouge plant rougeberry rouged rough rough bindweed rough bristlegrass rough cut rough drawing rough fish rough green snake rough horsetail rough in rough out rough pea rough sledding rough up rough water rough-and-ready rough-and-tumble rough-cut rough-dry rough-haired rough-hew rough-house rough-leaved aster rough-legged hawk rough-sand rough-skinned newt rough-spoken rough-stemmed goldenrod rough-textured roughage roughcast roughdried roughen roughened roughhewn roughhouse roughish roughleg roughly roughneck roughness roughrider roughshod roughtail stingray roulade rouleau roulette roulette ball roulette wheel round round angle round arch round bone round clam round dance round dancing round down round file round hand round kumquat round ligament of the uterus round of drinks round of golf round off round out round robin round scad round shape round shot round steak round table round the bend round the clock round top round trip round up round whitefish round window round-arm round-backed round-bottom round-bottom flask round-bottomed round-eyed round-faced round-fruited round-headed leek round-leaved rein orchid round-shouldered round-spored gyromitra round-table conference round-tailed muskrat round-the-clock round-the-clock patrol round-trip round-trip light time round-trip ticket roundabout roundabout way rounded rounded vowel roundedness roundel roundelay rounder rounders roundhead roundheaded roundhouse rounding rounding error roundish roundly roundness roundsman roundsperson roundswoman roundtable roundup roundworm rouse rouser rousing roustabout rout rout out rout up route routemarch router router plane routine routinely routineness roux rove rove beetle rover roving roving frame row row house row of bricks rowan rowan berry vodka rowan tree rowan vodka rowanberry rowanberry vodka rowboat rowdily rowdiness rowdy rowdyism rowel rower rowing rowing boat rowing club rowlock rowlock arch royal royal agaric royal blue royal brace royal casino royal charter royal court royal family royal fern royal flush royal house royal jelly royal line royal mast royal osmund royal palm royal poinciana royal purple royal road royal stag royal tennis royal velvet plant royal yard royalism royally royalty rozelle rpm rub rub along rub down rub in rub off rub off on rub out rub up rub-a-dub rubato rubber rubber band rubber boa rubber boot rubber bullet rubber cement rubber eraser rubber plant rubber stamp rubber tire rubber tree rubber-base paint rubber-necking rubberise rubberize rubberlike rubberneck rubbernecker rubberstamp rubbery rubbing rubbing alcohol rubbish rubbish dump rubbish heap rubbishy rubble rubdown rube rubefacient rubel rubella rubella panencephalitis rubeola rubiaceous plant rubicelle rubicund rubidium rubidium-strontium dating rubify ruble rubor rubric rubricate ruby ruby spinel ruby wood ruby-crowned kinglet ruby-crowned wren ruby-red ruck ruck up ruckle rucksack ruckus ruction rudaceous rock rudapithecus rudd rudder rudder blade rudder-like rudderfish rudderless rudderpost rudderstock ruddiness ruddle ruddles ruddy ruddy duck ruddy turnstone rude rudely rudeness rudiment rudimentary rudiments rue rue anemone rue family rueful ruefully ruefulness ruff ruffed grouse ruffian ruffianism ruffianly ruffle ruffle up ruffled rug rug beater rug merchant rug pad ruga rugby rugby ball rugby football rugel's plantain rugelach rugged rugged individualism ruggedisation ruggedise ruggedization ruggedize ruggedly ruggedness ruggelach rugger rugose rugulah ruin ruination ruined ruiner ruining ruinous ruinously ruinousness rule rule book rule in rule of cy pres rule of evidence rule of grammar rule of law rule of morphology rule of thumb rule out rule-governed ruled ruled surface ruler rulership rules of order ruling ruling class ruly rum rum baba rum cherry rum cocktail rum nose rum sling rum-blossom rumba rumble rumble seat rumbling rumbustious rumen ruminant ruminate rumination ruminative ruminator rummage rummage sale rummer rummy rumor rumormonger rumour rumourmonger rump rump roast rump steak rumple rumpled rumpus rumpus room rumrunner run run a risk run across run afoul run after run against run aground run along run around run away run bases run batted in run by run down run dry run for run into run low run off run off with run on run out run out of run over run roughshod run short run short of run through run up run-down run-in run-of-the-mill run-of-the-mine run-on run-on sentence run-resistant run-through run-time run-time error run-up runabout runaway runaway robin runch runcible spoon runcinate runcinate leaf rundle rundown rune rung runic runic letter runnel runner runner bean runner-up runner-up finish runniness running running away running back running blackberry running board running game running hand running head running headline running light running mate running noose running pine running play running pop running postman running shoe running start running stitch running suit running time running title runny runoff runproof runt runtime error runtiness runty runup runway rupee rupestral rupestral plant rupestrine plant rupiah rupicolous rupicolous plant rupture ruptured intervertebral disc rupturewort rural rural area rural free delivery ruralism ruralist rurality rurally ruse rush rush along rush aster rush away rush candle rush family rush grass rush hour rush nut rush off rush out rush rose rush-grass rushed rusher rushing rushlight rushlike rushy rusk russet russet scab rust rust fungus rust inhibitor rust mite rust-brown rust-colored rust-free rust-red rust-resistant rusted rustic rusticate rustication rusticism rusticity rustiness rusting rustle rustle up rustler rustless rustling rustproof rustproofed rusty rusty blackbird rusty grackle rusty rig rusty woodsia rusty-brown rusty-red rut rutabaga rutabaga plant ruth ruthenium rutherford rutherfordium ruthful ruthfulness ruthless ruthlessly ruthlessness rutile rutted ruttish rutty rya rya rug rydberg rydberg constant rydberg unit rye rye bread rye ergot rye flour rye grass rye vodka rye whiskey rye whisky ryegrass