to buoy up
- phrasal verb
- /ˈbɔɪ ʌp/
- Waves buoyed up the debris for several days before it washed ashore.
Examples
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The life vest buoyed up the child in the water.
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Special foam inserts buoy up the boat when it's heavily loaded.
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The lifeguard buoyed the swimmer up during the rescue.
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Can you buoy up this raft?
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The life jacket will buoy up the swimmer in rough waters.
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The vivid colors in the painting seem to buoy up the viewer's mood.
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The logs were used to buoy up the boat as it floated down the river.
Synonyms
To stay or move on water without sinking, sometimes in the air
To keep someone or something floating and give them hope
Antonyms
How Buoyant
Surface Forms
Morphology
The meaning 'to keep afloat; to support' is directly derivable from combining 'buoy' (to keep afloat, uplift, or encourage) with the particle 'up' (indicating upward movement or strengthening), so the composite sense is compositional. This motion/causative + particle pattern is common and predictable, so a B1 learner who knows both constituents would readily infer the MWE meaning.
Etymology
Buoy up comes from the real buoys and floats that keep boats or people on the water. So to 'buoy up' something means to keep it 'afloat' and stop it from sinking.