Suitable, proper.
You have nothing to say about it. I'll do exactly as I see fit.
Adapted to a purpose or environment.
survival of the fittest
In good shape; physically well.
You don't have to be a good climber for Kilimanjaro, but you do have to be fit.
Sexually attractive; good-looking; fanciable.
I think the girl working in the office is fit.
Prepared; ready.
A person who fits or assembles something.
a fitter of clothing, or of machinery
An epileptic.
A coal broker who conducts the sales between the owner of a coal pit and the shipper.
A person employed to find suitable music to accompany silent films.