Definitions
1.nounA float moored in water to mark a location, warn of danger, or indicate a navigational channel.
2.nounA life-buoy; a life preserver.
3.verbTo keep afloat or aloft; used with up.
4.verbTo support or maintain at a high level.
5.verbTo mark with a buoy."to buoy an anchor; to buoy or buoy off a channel"
6.verbTo maintain or enhance enthusiasm or confidence; to lift the spirits of."Buoyed by the huge success, they announced two other projects."