fitting

A small part, especially a standardized or detachable part of a device or machine.

(engineering) A tube connector; a standardized connecting part of a piping system to attach sections of pipe together, such as a coupling

The act of trying on clothes to inspect or adjust the fit.

(manufacturing) The process of fitting up; especially of applying craft methods such as skilled filing to the making and assembling of machines or other products.

(chiefly Britain, often plural) A removable item in a house or other building, which can be taken with one when one moves out, such as a moveable piece of furniture, a carpet, picture, etc.; US furnishing; compare fixture.

(uncountable) The action or condition of having fits in the sense of seizures or convulsions.