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

The hot weather, which has kept people indoors and forced those without air conditioning to seek refuge at cooling centers, is expected to last through much of the week.

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

Meanwhile, Mandy says she is grateful that the new community room with its air conditioning is providing some immediate respite for her and her mum.

From BBC ● Jul. 29, 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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