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air space

or airspace (for defs 3, 4)

noun
1.
a space occupied by air.
2.
the amount of breathing air in a room or other enclosed space.
3.
the region of the atmosphere above a municipality, state, or nation, over which it has jurisdiction.
4.
the region of the atmosphere above a plot of ground, to which the owner has rights or access.
Origin of air space
1900-1905
1900-05
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Word Value for air

3
3
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