airmailPronunciation: /ˈɛːmeɪl/Translate airmail | into French | into Italian | into Spanish Definition of airmail noun [mass noun] a system of transporting mail by aircraft, typically overseas:instructions were sent by airmail verb [with object] send (mail) by aircraft: I have a sheaf of letters to airmailairmail in other Oxford dictionaries Definition of airmail in the US English dictionary