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 (bo͞o′ē, boi)
1. A float placed in water and usually moored, as to mark a location, enable retrieval of a sunken object, or record oceanographic data.
2. A life buoy.
tr.v. buoyed, buoy·ing, buoys
1. To keep afloat or aloft: a glider buoyed by air currents.
a. To maintain at a high level; support: "the persistent ... takeover speculation, which has buoyed up the shares of banks" (Financial Times).
b. To hearten or inspire; uplift: "buoyed up by the team spirit and the pride of the older generation back at home" (Judith Martin).
3. To mark with or as if with a buoy.

[Middle English boie, from Old French boue, probably of Germanic origin; see bhā- in Indo-European roots.]


Shaped and colored floats, anchored to the seabed, to indicate channels, obstructions, or moorings.
References in classic literature ?
As fast as we hooked a net the two ends of it, buoy and boat, came together as they dragged out astern; and so many buoys and boats, coming together at such breakneck speed, kept the fishermen on the jump to avoid smashing into one another.
We now resolved to let off enough gas to bring our guide-rope, with the buoys affixed, into the water.
It was like my own marsh country, flat and monotonous, and with a dim horizon; while the winding river turned and turned, and the great floating buoys upon it turned and turned, and everything else seemed stranded and still.
we will fasten the end to a buoy," said he, "and that buoy will show us the exact spot where the projectile fell.
I assume he followed the land and passed through what is at present known as Margate Roads, groping his careful way along the hidden sandbanks, whose every tail and spit has its beacon or buoy nowadays.
When he came up, he glimpsed the blue-light on the buoy, which had ignited automatically when it struck the water.
A youth, a mild-faced Acadian, was drawing water from the cistern, which was nothing more than a rusty buoy, with an opening on one side, sunk in the ground.
Occasionally, they sink a cord in the river by a heavy weight, with a buoy at the upper end, to keep floating.
Danny, don't you want to skip up a piece an' see how aour trawl- buoy lays?
And you can hear the chains a- jangle as you go about and reach for the other buoy.
While he was talking, Natty had instinctively employed himself in fastening the inner end of the bark rope, that served him for a cable, to a paddle, and, rising suddenly on his legs, he cast this buoy away.
Until positive proof of the baby's death reached them there was always that to buoy them up.