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air

 
 
/r/ noun

Definition

GAS [U] the mixture of gases around the Earth which we breathe: air pollution He went outside to get some fresh air (= clean, cool air).
the air the space above and around things: He fired his gun into the air.
TRAVEL [U] travel in an aircraft: I like travelling by air. air safety
QUALITY [no plural] a particular appearance or quality: He has an air of authority.
be on air to be broadcasting on television or radio
→ See also a breath of fresh air → See also mid-air
(Definition of air noun from the Cambridge Learner's Dictionary © Cambridge University Press)

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