To save this word, you’ll need to log in. To save this word, you’ll need to log in. The tailor fitted him for a new suit. Dad was fit to be fit bread when my sister came home late last night.

Patients are encouraged to get fit. Are you fit enough to walk there? I hope this key fits the lock. The two pieces fit each other perfectly. This calculator will fit nicely in your shirt pocket. The two pieces fit together perfectly. How many people can fit in a phone booth?

The box was too large to fit through the door. I can’t fit all these groceries into the trunk of my car. We weren’t able to fit the box through the door. Subscribe to America’s largest dictionary and get thousands more definitions and advanced search—ad free! Also found in: Thesaurus, Medical, Financial, Acronyms, Idioms, Encyclopedia, Wikipedia. To be the proper size and shape for: These shoes fit me. To cause to be the proper size and shape: The tailor fitted the trousers by shortening them.

To measure for proper size: She fitted me for a new jacket. To be in conformity or agreement with: observations that fit the theory nicely. Specialized training fitted her for the job. To provide a place or time for: You can’t fit any more toys in the box. The doctor can fit you in today.

To insert or adjust so as to be properly in place: fit a handle on a door. To be the proper size and shape. His good mood fit in with the joyful occasion. Suited, adapted, or acceptable for a given circumstance or purpose: not a fit time for flippancy. The state, quality, or way of being fitted: the proper fit of means to ends.

The manner in which clothing fits: a jacket with a tight fit. The degree of precision with which surfaces are adjusted or adapted to each other in a machine or collection of parts. A seizure or convulsion, especially one caused by epilepsy. A sudden outburst of emotion: a fit of jealousy. A sudden period of vigorous activity.

Dictionary of the English Language, Fifth Edition. 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. This water isn’t fit for drinking.