›a small bag, usually made of cloth, sewn on the inside or outside of a piece of clothing and used to hold small objects: coat/pants/shirt pocketsShe took her keys out of her pocket.I paid for my ticket out of my own pocket (= with my own money).›A pocket is also a small container that is part of or attached to something else: The map is in the pocket on the car door.›In the game of pool, the pockets are the holes around the edge of the table into which the balls are hit.pocketful