air ‧ mail /ˈeəmeɪl $ ˈer-/ BrE AmE noun [uncountable]
letters and packages that are sent somewhere using a plane, or the system of doing this:
Send the letter by airmail.
air ‧ mail /ˈeəmeɪl $ ˈer-/ BrE AmE noun [uncountable]
letters and packages that are sent somewhere using a plane, or the system of doing this:
Send the letter by airmail.
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012