overhead space; sky:[uncountable* often: the + ~]The kite rose high in the air.
general character or appearance; aura:[countable* singular]had an air of mystery about him.
airs,[plural] an affected or haughty manner:Stop putting on airs.
Music and Dance[countable] a tune; melody: humming a simple air.
[uncountable] aircraft as a means of transportation: to ship by air.
Informal TermsInformal. an air-conditioning system:[uncountable]a car equipped with air and a cassette player.
v.
to expose to the air; ventilate: [~ (+ out) + object]to air (out) a room.[~ + object (+ out)]Let's air the room (out).[no object* (~ + out)]Let the room air (out).
to bring to public notice; display:[~ + object]to air one's opinions.
Show Business, Radio and Televisionto broadcast or televise; to be broadcast or televised: [~ + object]aired the program during prime time.[no object]The program airs in prime time.
adj.
operating by air pressure or by acting upon air:an air pump.
of or relating to aircraft or to aviation:air traffic control.
Idioms
Idiomsclear the air, to get rid of or eliminate misunderstandings:decided to discuss their differences and clear the air.
Idiomsin the air, being talked about:An interesting rumor is in the air.
Idiomsoff the air, not broadcasting or being broadcast:Suddenly the station went off the air.
Idiomson the air, broadcasting or being broadcast:The President is on the air tonight.
Idiomsup in the air, not decided; unsettled:Their plans are still up in the air.
the mixture of gases that forms the earth's atmosphere. At sea level dry air has a density of 1.226 kilograms per cubic metre and consists of 78.08 per cent nitrogen, 20.95 per cent oxygen, 0.93 per cent argon, 0.03 per cent carbon dioxide, with smaller quantities of ozone and inert gases; water vapour varies between 0 and 4 per cent and in industrial areas sulphur gases may be present as pollutants
the space above and around the earth; sky
Related adjective(s): aerial
breeze; slight wind
public expression; utterance
a distinctive quality: an air of mystery
a person's distinctive appearance, manner, or bearing
a simple tune for either vocal or instrumental performance
a mountainous region of N central Niger, in the Sahara, rising to 1500 m (5000 ft): a former native kingdom. Area: about 77 700 sq km (30 000 sq miles) Also called:Azbine, Asben
'air jet' also found in these entries (note: many are not synonyms or translations):