Available Definitions:
1) a. - Fit or fitted; suited; suitable; appropriate.
2) a. - Having an habitual tendency; habitually liable or likely; -- used of things.
3) a. - Inclined; disposed customarily; given; ready; -- used of persons.
4) a. - Ready; especially fitted or qualified (to do something); quick to learn; prompt; expert; as, a pupil apt to learn; an apt scholar.
5) v. t. - To fit; to suit; to adapt.