air mail

n. mail transported by airplane; airpost, system of transporting mail by airplain

Airmail (or air mail) is mail that is transported by aircraft. It typically arrives more quickly than surface mail, and usually costs more to send. Airmail may be the only option for sending mail to some destinations, such as overseas, if the mail cannot wait the time it would take to arrive by ship, sometimes weeks.
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Noun
1. mail that is sent by air transport
(antonym) surface mail
(hypernym) mail

n.
ہوائي ڈاک

air mail /'eəmeil/ (air_post) /'eəpoust/
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