English

air

/ˈɛə̯/

The substance constituting Earth's atmosphere: a gaseous mixture of nitrogen, oxygen, and various trace gases.

Etymology graph

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From Middle English aire, from Old French air, from Latin āēr, from Ancient Greek ἀήρ (aḗr). Displaced native Old English lyft. More at lift, loft.

From Wiktionary, CC BY-SA 4.0.

noun

The substance constituting Earth's atmosphere: a gaseous mixture of nitrogen, oxygen, and various trace gases.
The substance of the atmosphere seen as an agency of freshness.
One of the four elements of the ancient Greeks and Romans.
The surrounding ambience or mood; see also in the air.
A local environment or atmosphere, in the context of its effects on behavior, health, weather, etc.
The apparently open space above the ground which this substance fills, (historical) formerly thought to be limited by the firmament but (meteorology) now considered to be surrounded by the near-vacuum of outer space.

verb

To bring (something) into contact with the air, so as to freshen or dry it.
To let fresh air into (a room or a building), to ventilate.
To make public (an opinion, concern, issue, secret, differences, etc); to present to public view (and sometimes discussion).
To broadcast (a television show etc.).
To be broadcast.
To ignore (a person).