air1 W1S1 [eə US er] n
2¦(space above the ground)¦
4 be in the air
6 be up in the air
7 be on/off (the) air
9 airs
10 be walking/floating on air
[Sense: 1-7, 9; Date: 1200-1300; : Old French; Origin: Latin aer, from Greek]
[Sense: 8; Date: 1500-1600; Origin: Probably a translation of Italian aria; ARIA]
1.) ¦(GAS)¦[U]
the mixture of gases around the Earth, that we breathe
You need to put some air in the tyres.
in the air
There was a strong smell of burning in the air.
Let's go outside and get some fresh air.
public opposition to air pollution
a breath of fresh air atbreath
the air
the space above the ground or around things
into the air
Flames leapt into the air.
through the air
He fell 2000 metres through the air without a parachute.
3.) ¦(PLANES)¦
a) by air
travelling by, or using a plane
I'd prefer to travel by air.
b) relating to or involving planes
the victims of Britain's worst air disaster
Air travel was growing rapidly.
air traffic congestion
His brother died in an air crash .
4.) be in the air
a) if a feeling is in the air, a lot of people feel it at the same time
There was a sense of excitement in the air.
b) to be going to happen very soon
Change is in the air.
5.) ¦(APPEARANCE)¦ [singular]
if something or someone has an air of confidence, mystery etc, they seem confident, mysterious etc
air of
She had an air of quiet confidence.
She looked at him with a determined air.
6.) be up in the air
if something is up in the air, no decision has been made about it yet
Our trip is still very much up in the air.
7.) be on/off (the) air
to be broadcasting on the radio or television at the present moment, or to stop broadcasting
We'll be on air in three minutes.
8.) ¦(MUSIC)¦
a simple tune, often used in the title of a piece of ↑classical music
9.) airs [plural]
a way of behaving that shows someone thinks they are more important than they really are
put on airs/give yourself airs
Trudy is always putting on airs.
an actor with no airs and graces
10.) be walking/floating on air
to feel very happy
→↑hot air, on-air,clear the air atclear2 (15), disappear/vanish into thin air atthin1 (15), out of thin air atthin1 (16)
air 2
air2 v
1.) ¦(OPINION)¦ [T]
to express your opinions publicly
air your views/grievances/complaints etc
Staff will get a chance to ask questions and air their views.
2.) ¦(TV/RADIO)¦ [I and T]
to broadcast a programme on television or radio
KPBS airs such popular children's programs as 'Barney' and 'Sesame Street'.
The program is due to air next month.
3.) ¦(ROOM)¦ [T]
especially BrE air sth out AmE
to let fresh air into a room, especially one that has been closed for a long time
4.) ¦(CLOTHES)¦ [I and T]
especially BrE air (sth) out AmE
to put a piece of clothing in a place that is warm or has a lot of air, so that it smells clean
I've left my sweater outside to air.
air your dirty laundry atdirty1 (7)

Dictionary of contemporary English. 2013.

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