buoy

Words with a similar base: buoy, buoy_up

'buoy'

[buoy.n.01] as in: bright-colored; a float attached by rope to the seabed to mark channels in a harbor or underwater hazards

'buoy'

[buoy.v.01] as in: float on the surface of water

'buoy'

[buoy.v.02] as in: keep afloat

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Examples:
The life vest buoyed him up

'buoy'

[buoy.v.03] as in: mark with a buoy