Synonyms for buoy

Noun

1. buoy, reference point, point of reference, reference

usage: bright-colored; a float attached by rope to the seabed to mark channels in a harbor or underwater hazards

Verb

1. buoy, float, swim

usage: float on the surface of water

2. buoy, buoy up, hold, support, sustain, hold up

usage: keep afloat; "The life vest buoyed him up"

3. buoy, mark

usage: mark with a buoy