Pocket  —n. 1 small bag sewn into or on clothing, for carrying small articles. 2 pouchlike compartment in a suitcase, car door, etc. 3 one's financial resources (beyond my pocket). 4 isolated group or area (pockets of resistance). 5 cavity in the earth containing ore, esp. Gold. 6 pouch at the corner or on the side of a billiard- or snooker-table into which balls are driven. 7 = *air pocket. 8 (attrib.) A small enough or intended for carrying in a pocket.