/ˌeɪ.viˈeɪ.ʃən ˈiːz.mənt/ – Phrase
Definition: quyền sử dụng không gian không gian hàng không.
A more thorough explanation: a right given granting the holder unlimited permission to fly over the land belonging to another
Example: The City has acquired an8. 37 acre aviation easement along the eastern side of the airport property.