air space

American  

Also airspace

noun

1. a space occupied by air.

2. the amount of breathing air in a room or other enclosed space.

3. the region of the atmosphere above a municipality, state, or nation, over which it has jurisdiction.

4. the region of the atmosphere above a plot of ground, to which the owner has rights or access.

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Etymology

Origin of air space

First recorded in 1900–05

Example Sentences

—In Asia, airline stocks suffered steep losses in Asia as various carriers announced flight suspensions due to air space closures.

From The Wall Street Journal • Mar. 2, 2026

Guinea-Bissau's air space, as well as land and sea borders, will be closed all day Sunday.

From Barron's • Nov. 23, 2025

The move is intended to keep the air space safe during the shutdown, the agency said.

From Los Angeles Times • Nov. 6, 2025

Chinese foreign ministry spokesman Lin Jian said that their "activities in relevant waters and air space are consistent with international law and international practices", and that the two countries were communicating through existing channels.

From BBC • Jun. 19, 2025

And beyond the parapet of the terrace was the air space over Forty-fourth Street.

From "Slaughterhouse-Five" by Kurt Vonnegut