to express your opinions publicly
air your views/grievances/complaints etc
Staff will get a chance to ask questions and air their views.
to broadcast a programme on television or radio:
tv/radio[intransitive and transitive]
KPBS airs such popular children's programs as 'Barney' and 'Sesame Street'.
The program is due to air next month.
to let fresh air into a room, especially one that has been closed for a long time
room[transitive] especially British English air something out American English
to put a piece of clothing in a place that is warm or has a lot of air, so that it smells clean:
clothes[intransitive and transitive] especially British English air (something) out American English
I've left my sweater outside to air.