air

noun
/ˈɛə̯/

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

Example

“This drill runs on compressed air.”

Other meanings

The substance of the atmosphere seen as an agency of freshness.
One of the four elements of the ancient Greeks and Romans.

A kind of

Kinds of air

breath
hot air
liquid air

Example sentences

“He sucks all the air out of me.”
Tatoeba · AmarMecheri · CC0
“Do all the rooms have air-conditioning?”
Tatoeba · Igider · CC0
“Is air frying as healthy as baking?”
Tatoeba · shekitten · CC0

Word history

From Ancient Greek "ἀήρ".

Where this comes from

This definition is adapted from “air” on Wiktionary, by its contributors; example sentences are from Tatoeba, credited to their authors above; related-word lists use Open English WordNet (CC BY 4.0, based on Princeton WordNet), published under CC BY-SA 4.0. This page is published under the same licence.