air space

Other spellings

• airspace

Word parts

air + space

Noun

Singular air space

Plural air spaces

1. (countable) An air space is a special part of the atmosphere that is often under the jurisdiction of the land below it.
2. (countable) An air space is a part of the sky that is set aside for use by aircraft.

   The airplane had instructions to only fly in the air space above the state of Kentucky.