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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.

See Examples For:

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

He was not wearing a life jacket at the time, police said.

From BBC May 4, 2026

A life jacket worn by a Titanic survivor is to be auctioned for up to £350,000.

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

Looking behind her, she had a quick glimpse of her life jacket bobbing way back there, and then she was under again.

From "Ruby Holler" by Sharon Creech

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