Pocket

1. A small baglike attachment forming part of a garment and used to carry small articles. He kept his wallet in a back pocket.
2. Of a size suitable for putting in a pocket. A pocket dictionary.
3. Smaller or more compact than usual. The Germans built a pocket battleship.
4. An enclosed volume of one substance surrounded by another. The drilling expedition discovered a pocket of natural gas.
5. An area where military units are completely surrounded by another. In 1944, following the D-Day landings, the German Seventh Army was trapped in the Falaise pocket.
6. To take possession of for oneself. He pocketed the money when nobody was looking.
7. Financial means; money supply. The cost of the trip must come form your own pocket.
8. One of the pouchlike receptacles at the corners and sides of a pool table. Put the eight ball in the side pocket.