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Synonyms

life jacket

American  

noun

  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

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.

She and fellow survivors, signed the life jacket, leaving their signatures on the cream-coloured vest, which features 12 pockets and is fitted with shoulder rests and side straps.

From BBC • Apr. 15, 2026

"The water is safe when there's a lifeguard and you have a life jacket on," he said.

From BBC • Mar. 5, 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

"At this time, you know, the waves are massive, and I have no life jacket on. So anyway, I just keep swimming. I do breaststroke. I do freestyle. Survival backstroke."

From Barron's • Feb. 3, 2026

“I want a life jacket for my son,” Baba says.

From "Without Refuge" by Jane Mitchell

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