air
air · noun
Definitions
noun
- 1.
The invisible gaseous substance surrounding the earth, a mixture mainly of oxygen and nitrogen.
- 2.
The open space above the surface of the earth; the sky.
- 3.
[aviation]Travel by aircraft.
- 4.
A distinctive impression or quality.
- 5.
[music]A tune or melody.
- 6.
Express or make public.
- 7.
Expose to fresh or warm air.
Forms
plural: airs
Phrases & expressions
- •in the air — Felt by many people; imminent.
- •on the air — Broadcasting.
- •clear the air — Resolve tensions by discussing openly.
- •up in the air — Uncertain; undecided.
- •into thin air — Completely disappear.
- •hot air — Empty talk; boasting.
- •airs and graces — Affected manners to impress.
- •build castles in the air — Have unrealistic dreams.
- •a breath of fresh air — Something refreshing or new.
Related words
Etymology
From Old French air, from Latin aer, from Greek aēr ("air, atmosphere").