ac (A2)

noun

Pronunciation: /eɪ siː/

Definition

A system that cools the air in a room or vehicle.

Examples

• The hotel room had excellent air conditioning.

• He turned on the AC to beat the summer heat.

• Make sure the air conditioner is off before you leave.

How to Use ac

turn on the AC (phrasal verb)

To start the air conditioning system. — "Can you turn on the AC? It's getting warm in here."

turn off the AC (phrasal verb)

To stop the air conditioning system. — "Remember to turn off the AC when you go out."

central AC (collocation)

An air conditioning system that cools an entire building or house. — "The apartment has central AC, so it's comfortable year-round."

Synonyms of ac

Words with a similar meaning to ac:

• cooling system
• air cooler
• refrigeration

Antonyms of ac

Words with the opposite meaning to ac:

• heater
• furnace

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