A jail or guardhouse, especially in a naval military prison or jail on a ship, navy base, or (in fiction) spacecraft.
A two-masted vessel, square-rigged on both foremast and mainmast
Bridge.
Brigadier.
A place or institution where people are held against their will, especially for long-term confinement of those awaiting trial or convicted of serious crimes or otherwise considered undesirable by the government.
Confinement in prison.
Any restrictive environment, such as a harsh academy or home.
To imprison.