airspace

From Wiktionary

Noun[change]

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.

Related words[change]