たった (tatta) means “only” | MotiTan Japanese Dictionary

More examples

彼はたった一度だけ遅刻しました。kare wa ta tta ichi do da ke chi koku shi ma shi ta

He was late only once.

Marks an amount as limited to a small number or degree, often highlighting how little it is.

わずかwazuka: Indicates that an amount or degree is small.

数量や程度が少なく、それだけに限られていることを強調するさま。sū ryō ya tei do ga suku na ku so re da ke ni kagi ra re te i ru ko to o kyō chō su ru sa ma

The adverb たった (tatta, "only") comes from ただ (tada, "only") with a strengthened consonant, giving it an emphatic sense.

Although English only can be neutral, たった (tatta, "only") often highlights that a quantity feels surprisingly small, as in たった二人 (tatta futari).