AIRSPACE, the portion of atmosphere above a certain land area [n]
Space available in the atmosphere immediately above the earth
The air available to aircraft to fly in, esp. the part subject to the jurisdiction of a particular country
The right of a private landowner to the space above his land and any structures on it, which he can use for ordinary purposes such as the erection of signposts or fences
Space left to be occupied by air for purposes of insulation
AIRSPACE, the portion of the atmosphere above a particular land area [n]