- Brit a club or bludgeon, esp one kept for self-defence
- US Canadian a life belt or life jacket
WordReference Random House Learner's Dictionary of American English © 2026
life pre•serv•er /ˈlaɪf prɪˌsɜrvɚ/USA pronunciation n. [countable]
WordReference Random House Unabridged Dictionary of American English © 2026- Nautical, Military, Naval Termsa jacket, belt, or other device that keeps a person afloat in water.
- British Termsa blackjack.
life′ preserv′er,
- Nautical, Military, Naval Termsa buoyant jacket, belt, or other like device for keeping a person afloat.
- British Termsa weapon, esp. a short stick with a weighted head;
blackjack. - 1630–40
Collins Concise English Dictionary © HarperCollins Publishers::
life preserver n
'life preserver' also found in these entries (note: many are not synonyms or translations):