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cooler

American  
[koo-ler] / ˈku lər /

noun

  1. a container or apparatus, as an insulated chest, in which something may be cooled or kept cool.

  2. anything that cools or makes cool; refrigerant.

  3. an air conditioner.

  4. a tall drink, consisting of liquor, soda, and a fruit garnish.

  5. water cooler.

  6. Slang. the cooler, jail.

    He was in the cooler for three months for petty theft.

  7. Ice Hockey Slang. penalty box.

cooler British  
/ ˈkuːlə /

noun

  1. a container, vessel, or apparatus for cooling, such as a heat exchanger

  2. a slang word for prison

  3. a drink consisting of wine, fruit juice, and carbonated water

"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 cooler

First recorded in 1565–75; cool + -er 1

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.