airspace

Other spellings

• air space

Word parts

air + space

Noun

Singular airspace

Plural airspaces

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

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