life preserver

noun

: a floating device that is designed to save you from drowning

Full Definition of LIFE PRESERVER

: a device (as a life jacket or life buoy) designed to save a person from drowning by providing buoyancy in water

chiefly British : blackjack 3

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1804

LIFE PRESERVER Defined for Kids

noun

: a device (as a life jacket or life buoy) designed to save a person from drowning by keeping the person afloat

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