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English definition of “lifebelt”

lifebelt

noun [C]     /ˈlaɪf.belt/ (also lifebuoy)
a piece of equipment, usually a ring filled with air or light material that floats, designed to help you float if you fall into waterParts of ships and boats
(Definition of lifebelt noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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