On-air meaning

ŏnâr, ôn-
(broadcasting) Transmitting live.
prepositional phrase
3
1
Actually broadcasting on a radio or television station (as opposed to just recording for later transmission).

He didn't realise he had made his remarks on-air.

adverb
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0
Spoken, occurring, or used during broadcasting.

An on-air gaffe; changed his on-air name.

adjective
1
1
Used other than as an idiom: see on,‎ air.
prepositional phrase
0
0
prepositional phrase
0
0
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prepositional phrase
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(radio, tv) (while) Broadcasting or being broadcast.
adjective
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1
Broadcast (as opposed to recorded).
adjective
0
1
The definition of on-air is something that is broadcast over the radio or on TV.

A comment that a TV host makes on a live TV show is an example of an on-air comment.

adjective
0
2

Origin of on-air

  • Derived from early use of radio, literally sending the transmission on the air waves

    From Wiktionary