Meaning of “life preserver” in the English Dictionary

american-english dictionary

"life preserver" in American English

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life preservernoun [ C ]

us /ˈlɑɪf prɪˌzɜr·vər/

a large ring or jacket without sleeves made of material that floats and that you can put around your chest to keep you from sinking in the water

(Definition of “life preserver” from the Cambridge Academic Content Dictionary © Cambridge University Press)