Meaning of brig

brig

1. a two-masted vessel square-rigged on both masts.
2. (formerly, in the U.S. Navy) an armed brig-rigged or brigantine-rigged vessel.
3. the compartment of a ship where prisoners are confined.
2. a place of confinement or detention, esp. in the U.S. Navy or Marines; guardhouse.

Brig.

1. brigade.
2. brigadier.