English

Definition of on-air adjective from the Oxford Advanced Learner's Dictionary

 

on-air

 adjective
adjective
BrE
 
; NAmE
 
Producing TV shows
 
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  • (in radio and television) being broadcast She explains how she deals with on-air technical problems. opposite off-air See related entries: Producing TV shows
  • Idioms broadcasting or not broadcasting on television or radio We will be back on air tomorrow morning at 7. The programme was taken off the air over the summer. See related entries: Radio broadcasting
    See the Oxford Advanced American Dictionary entry: on-air