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air

noun (BROADCAST)
 
 
/r/ US  /er/

Definition

be on/off (the) air C1 If a programme or a person is on/off (the) air, they are/are not broadcasting on radio or television: The radio station is on air from 6 a.m. As soon as the war started, any broadcasts with a military theme were taken off the air.Broadcasting in general
(Definition of air noun (BROADCAST) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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