<p><strong>noun</strong></p><ul><li>Nautical. A two-masted vessel square-rigged on both masts.</li><li>(Formerly, in the U.S. Navy) An armed brig-rigged or brigantine-rigged vessel.</li><li>The compartment of a ship where prisoners are confined.</li><li>A place of confinement or detention, especially in the U.S. Navy or Marines; guardhouse.</li></ul>