airspace

noun

Definitions of airspace

English

the sky above a country that is under that country's legal control

Uzbekistan has to offer the use of its airspace to the United States military.

English

the space above a piece of land to which the owner of the land has rights

There are many potential users of the airspace above land, whereas, generally speaking, the general public has no right to use or go into substrata beneath someone else's land.