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.
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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.
Zhuravylov has lived in Warsaw with his family since just before Russia's full-scale invasion of Ukraine and has his own business there installing air conditioning.
From BBC ● Oct. 10, 2026
That is paired with down-sloping winds and uncharacteristically warm ocean temperatures — driven in part by an El Niño that has reduced Southern California’s sea breeze, frequently known as its natural air conditioning.
From Los Angeles Times ● Oct. 6, 2026
After being shuttled in less than half an hour between aggressive air conditioning, a muggy Chicago street and the temperate library, the cup had begun producing condensation at an alarming rate.
From Salon ● Sep. 23, 2026
The air conditioning units had undergone maintenance, but the report says this is not the same as a safety check.
From BBC ● Sep. 16, 2026
She reached out and turned the air conditioning down a couple of clicks.
From "The Serpent King" by Jeff Zentner
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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.