The degree to which something fits.
Since he put on weight, his jeans have been a tight fit.
Conformity of elements one to another.
It's hard to get a good fit using second-hand parts.
The part of an object upon which anything fits tightly.
Measure of how well a particular commercial execution captures the character or values of a brand.
The Wonder Bread advertising research results showed the “White Picket Fence” commercial had strong fit ratings.
Goodness of fit.
The quality of a partnership's combined holding of cards in a suit, particularly of trump.
During the auction, it is often a partnership's goal to find an eight-card major suit fit.
To be suitable for.
It fits the purpose.
To conform to in size and shape.
If I lose a few kilos, the gorgeous wedding dress might fit me.
To be of the right size and shape
I wanted to borrow my little sister's jeans, but they didn't fit.
(with to) To make conform in size and shape.
I want to fit the drapes to the windows.
To be in agreement with.
These definitions fit most of the usage.
To adjust.
The regression program fit a line to the data.
To attach, especially when requiring exact positioning or sizing.
To equip or supply.
The chandler will fit us with provisions for a month.
To make ready.
I'm fitting the ship for a summer sail home.
To be seemly.
To be proper or becoming.
To be in harmony.
The paint, the fabrics, the rugs all fit.
A section of a poem or ballad.
A seizure or convulsion.
My grandfather died after having a fit.
A sudden and vigorous appearance of a symptom over a short period of time.
A sudden outburst of emotion.
He had a laughing fit which lasted more than ten minutes.
A sudden burst (of an activity).
To suffer a fit.