{Anchor buoy}, a buoy attached to, or marking the position
of, an anchor.
{Bell buoy}, a large buoy on which a bell is mounted, to be
rung by the motion of the waves.
{Breeches buoy}. See under {Breeches}.
{Cable buoy}, an empty cask employed to buoy up the cable in
rocky anchorage.
{Can buoy}, a hollow buoy made of sheet or boiler iron,
usually conical or pear-shaped.
{Life buoy}, a float intended to support persons who have
fallen into the water, until a boat can be dispatched to
save them.
{Nut} or {Nun buoy}, a buoy large in the middle, and tapering
nearly to a point at each end.
{To stream the buoy}, to let the anchor buoy fall by the
ship's side into the water, before letting go the anchor.
{Whistling buoy}, a buoy fitted with a whistle that is blown
by the action of the waves.
2. To support or sustain; to preserve from sinking into ruin
or despondency.
Those old prejudices, which buoy up the ponderous
mass of his nobility, wealth, and title. --Burke.
3. To fix buoys to; to mark by a buoy or by buoys; as, to
buoy an anchor; to buoy or buoy off a channel.
Not one rock near the surface was discovered which
was not buoyed by this floating weed. --Darwin.