Meaning of "fit" in Essential American English Dictionary

fit

verb us /fɪt/ (present participle fitting, past tense and past participle fitted)

B1 to be the right shape or size for someone or something:

This shirt doesn’t fit me any more.

B1 If people or things fit somewhere, that place is big enough for them:

How many people can fit in your car?

(Definition of “fit verb” from the Webster's Essential Mini Dictionary © Cambridge University Press)