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air

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noun American English pronunciation: air /er/ 
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singularair
pluralairs
  1. 1
    [uncountable] the mixture of gases surrounding the Earth that we breathe

    Do we really want all these cars polluting the air?

    She breathed in the cold air.

    I'd like to open the window: I need some air.

    Inside the house the air smelled like fresh paint.

    a blast/rush/draft/gust of air (=a current of moving air):

    A blast of cold air swept through the house.

    1. a.

      the air

      the space around things and above the ground

      They threw their hats up into the air.

      The baby waved its legs in the air.

      birds flying through the air

  2. 2
    [singular] a feeling or attitude that someone has
    air of:

    She spoke with her usual air of authority.

    1. a.
      the feeling that a place or situation gives you

      The overgrown lawn gave the house a neglected air.

      air of:

      There was an air of gloom about the whole trial.

  3. 3

    airs

    [plural] behavior that is not natural and relaxed by someone who wants to impress people and seem important
    put on airs:

    My friends are people I trust, and I don't have to put on airs with them.

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