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Definition of "buoy" []

  • A float moored in water to mark a location, warn of danger, or indicate a navigational channel. (noun)
  • A life buoy. (noun)
  • To keep afloat or aloft: a glider buoyed by air currents. (verb-transitive)
  • To maintain at a high level; support: "the persistent ... takeover speculation, which has buoyed up the shares of banks” ( Financial Times). (verb-transitive)
  • To hearten or inspire; uplift: "buoyed up by the team spirit and the pride of the older generation back at home” ( Judith Martin). (verb-transitive)
  • A distinctively shaped and coloured float, anchored to the bottom, for designating moorings, navigable channels, or obstructions in a body of water (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

  • To prevent from sinking (verb)
  • To raise the spirits of; hearten (verb)
  • To mark (a channel or obstruction) with a buoy or buoys (verb)
  • To rise to the surface (verb)

www.Collinsdictionary.com (c) HarperCollins Publishers Ltd 2016

Use "buoy" in a sentence
  • "A buoy is tossed over the rail but the captain refuses to hard down the helm and send a boat to rescue."
  • "A lot of times, it's a two-loop swim, and the turn buoy is only 300 yards away."
  • "The flag of the first buoy is scarlet and the ball is under the flag."