1. (n.) A float; esp. a floating object moored to the bottom, to mark a channel or to point out the position of something beneath the water, as an anchor, shoal, rock, etc.

2. (v. t.) To keep from sinking in a fluid, as in water or air; to keep afloat; -- with up.

3. (v. t.) To support or sustain; to preserve from sinking into ruin or despondency.

4. (v. t.) To fix buoys to; to mark by a buoy or by buoys; as, to buoy an anchor; to buoy or buoy off a channel.

5. (v. i.) To float; to rise like a buoy.

Carling float Mae West Roman candle aid to navigation alarm amber light balefire balsa balsa raft beacon beacon fire bear up bell bell buoy blinker blue peter bob boom breeches buoy buoy up caution light cork cork jacket ejection capsule ejection seat ejector seat elevate flare float float high fog bell fog signal fog whistle foghorn glance go light gong buoy green light hearten heliograph high sign hold up international alphabet flag international numeral pennant keep up kick leer life belt life buoy life jacket life net life preserver life raft life ring life vest lifeboat lifeline lift lollipop marker beacon nod nudge parachute parachute flare pilot flag poke police whistle pontoon quarantine flag radio beacon raft raise red flag red light ride high rocket rubber dinghy safety belt sailing aid semaphore semaphore flag semaphore telegraph sign signal signal beacon signal bell signal fire signal flag signal gong signal gun signal lamp signal light signal mast signal post signal rocket signal shot signal siren signal tower siren spar buoy stop light support surfboard sustain the nod the wink touch traffic light traffic signal upbear uphold uplift upraise waft watch fire water wings white flag wigwag wigwag flag wink yellow flag