air conditioning

American  

[air kuhn-dish-uh-ning] / ˈɛər kənˈdɪʃ ə nɪŋ /

noun

1. 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.

2. an air-conditioning system or unit.

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air conditioning British  

noun

1. a system or process for controlling the temperature and sometimes the humidity and purity of the air in a house, etc

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Other Word Forms

• air conditioner
  noun
• air-conditioning
  adjective

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Etymology

Origin of air conditioning

First recorded in 1905–10

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Example Sentences

See Examples For:

air conditioning

He jacked up the air conditioning and hit the gas.

From The Wall Street Journal ● Oct. 15, 2026

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

Owner-operator Deol uses battery-powered electric air conditioning systems installed on both his trucks so he can turn off the engines and avoid idling.

From Los Angeles Times ● Oct. 7, 2026

Investors now plan an intensive program to modernize the mechanical, electrical, and air conditioning systems.

From Barron's ● Oct. 7, 2026

My dad looks at my shoulders and sees I have goose bumps from the air conditioning.

From "Marcus Vega Doesn't Speak Spanish" by Pablo Cartaya

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