Buoy

/bɔɪ/

Meaning & Definition

noun
A floating device used to mark a location in water, warn of danger, or assist navigation.
The lifeguard placed a buoy in the water to indicate where it was safe to swim.
An object that floats on the surface of a liquid, typically used for marking a position or as a floating anchor.
The fisherman tied his boat to a buoy to keep it from drifting away.
An inflatable object used to mark swimming areas or hazards.
Brightly colored buoys were scattered throughout the harbor to guide the boats.
verb
To keep (something) afloat; to support or sustain.
The life vest will buoy you if you fall into the water.
To raise the spirits of; to encourage.
Her kind words buoyed his confidence before the big presentation.
To provide support to (an object) so that it remains above water.
The raft was buoyed by several large air-filled chambers.

Etymology

Middle English 'boi', from Old French 'boei', of uncertain origin.

Common Phrases and Expressions

buoy up
To enhance or lift someone's mood or spirits.
buoy the economy
To provide support or stimulation to economic activity.
buoyancy
The ability to float or rise in a fluid.

Related Words

float
An object that rests on the surface of a liquid instead of sinking.
marker
An object used to indicate a position or location.

Slang Meanings

A term of endearment for a male.
Hey, buoy, how's it going?
A friend or buddy.
What's up, buoy? Let's hang out.