air conditioning
Americannoun
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a system or process for controlling the temperature, humidity, and sometimes the purity of the air in an interior, as of an office, theater, laboratory, or house, especially one capable of cooling.
-
an air-conditioning system or unit.
noun
Other Word Forms
Etymology
Origin of air conditioning
First recorded in 1905–10
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.
Cooking classes and wine tasting sessions - usually hosted in venues with air conditioning - are becoming a popular alternative to walking tours, Medina says.
From BBC ● Aug. 4, 2026
Some have been known to lack basic necessities like air conditioning or running water.
From Los Angeles Times ● Aug. 4, 2026
In Seoul's affluent district of Gangnam, a severe heatwave has changed the currency of cool: access to air conditioning now defines the line between the haves and the have-nots.
From Barron's ● Aug. 4, 2026
He is also the reason Texas has spent the past two years fighting a federal lawsuit, brought by Tiede, over air conditioning in its prisons.
From Slate ● Jul. 31, 2026
The building had central air conditioning; what we had to do was find the main air shaft and explore it.
From "Mrs. Frisby and the Rats of NIMH" by Robert C. O'Brien
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.
