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a float usually consisting of a ring of buoyant material to support persons who have fallen into the water, a ring-shaped life preserver usually made of cork and other buoyant materials
lifebuoy . Huviharidussõnastik. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//has/lifebuoy/1/eng (20.07.2026)