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Synonyms

life jacket

American  

noun

life jackets plural
  1. a sleeveless jacket of buoyant or inflatable construction, for supporting the wearer in deep water and preventing drowning.


life jacket British  

noun

  1. an inflatable sleeveless jacket worn to keep a person afloat when in danger of drowning

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Noun Inflected Forms

Etymology

Origin of life jacket

First recorded in 1865–70

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Looking like a life jacket thrown into a car compactor, the work weaves a floppy beam of hazard-orange steel around and through a menacing conglomeration of rusty metal scraps.

From The Wall Street Journal • May 22, 2026

It is the only life jacket from one of the survivors ever to be put up for sale, with auctioneers describing the rare item as a "once in a lifetime opportunity for collectors".

From BBC • Apr. 15, 2026

"He swam, he reckons, the first two hours with a life jacket on," Bresland told national broadcaster ABC.

From Barron's • Feb. 3, 2026

The youngster said he started heading for shore with just his life jacket but later abandoned it to swim unencumbered.

From Barron's • Feb. 3, 2026

He took off his backpack and hugged it against his chest like it was a life jacket.

From "Boy 2.0" by Tracey Baptiste

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