English–French dictionary: O
- oak
- oasis
- oath
- obedience
- obedient
- obelisk
- obesity
- obey
- object to
- objection
- obliged
- observatory
- observe
- observer
- obsession
- obsessive
- obsolete
- obstacle
- obtaining
- obvious
- obviously
- occasional
- occasionally
- occur
- occurrence
- ocean
- ocean liner
- oceanic
- oceanographer
- october
- ode
- of
- of course
- offend
- offense
- offer
- offhand
- office
- officer
- official
- officially
- offset
- often
- ogre
- oh
- oil
- oil change
- oil tanker
- oily
- ointment
- okay
- old
- old age
- old-fashioned
- old man
- older
- olive
- olive tree
- olympic
- omega
- omelet
- on
- on purpose
- on the contrary
- on the run
- on top
- one-eyed
- oneself
- onion
- only
- open
- open slightly
- open to criticism
- open wide
- opening
- opening ceremony
- openly
- opera
- opera singer
- operate
- operate on
- operation
- operational
- operator
- opinion
- opponent
- opportunity
- opposite
- opposite meaning
- opposition
- oppression
- optimism
- optimistic
- option
- or
- oracle
- oral
- orange
- orangutan
- orbit
- orbital
- orchard
- orchestra
- orchid
- ordeal
- order
- ordinary
- ore
- org chart
- organ
- organic
- organization
- organize
- organized
- organizer
- oriental
- origin
- original
- originality
- orphan
- orphanage
- ossify
- osteoporosis
- ostracism
- ostrich
- otherness
- others
- otherwise
- ouch
- ounce
- our
- ours
- out of place
- outfit
- outgoing
- outlandish
- outlet
- outline
- outlying
- outpouring
- outrage
- outrageous
- outside
- outskirts
- oven
- over
- over there
- overall
- overcome
- overdesign
- overdose
- overdraft
- overflow
- overflow drain
- overhead wire
- overinvestment
- overload
- overnight stay
- overpack
- overproduction
- overrepresentation
- overripe
- overrun
- overseas
- oversee
- oversight
- overthrow
- overview
- overweight
- overwhelm
- overwhelmingly
- overwhelmingly support
- owl
- owner
- oxidation
- oxide
- oxidizing agent
- oxygen
- oyster
- ozone