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flak jacket

American  

noun

  1. U.S. Air Force. an armored garment made of steel plates covered by a padded fabric, designed to protect vital parts of the body from shrapnel.

  2. a protective vest, especially one that is bulletproof.


flak jacket British  

noun

  1. a reinforced sleeveless jacket for protection against gunfire or shrapnel worn by soldiers, policemen, etc

"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 flak jacket

First recorded in 1955–60

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:

Wine, who has been repeatedly arrested in the past, campaigned in a flak jacket, saying the race has become a "war".

From Barron's Jan. 12, 2026

While a U.S.-led coalition focused on airstrikes, several ground victories by Iraqi forces featured photographs of Soleimani leading them without a flak jacket.

From Seattle Times Jan. 3, 2024

Wearing a bluish flak jacket emblazoned with the word “Press,” she was recently in a Rafah refugee camp reporting on the lack of women’s sanitary products.

From Los Angeles Times Dec. 19, 2023

My children visit me when I'm working - they put on my flak jacket, my helmet, and we laugh together.

From BBC Oct. 21, 2023

Gearhart had his head up, his flak jacket was open.

From "Fallen Angels" by Walter Dean Myers

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