1. A system of conveying mail by aircraft
   "airmail significantly reduced delivery times for international mail";
   - airpost
    
2. Letters and packages that are transported by aircraft
   "She sent the urgent documents by airmail to ensure quick delivery"

1. Send or transport by airmail
   "Letters to Europe from the U.S. are best airmailed"

1. Mail that is sent by air transport
   "She sent the package by air mail to ensure it arrived quickly"

Derived forms: air mails, airmailed, airmailing, airmails

Type of: mail, mail service, post [Brit], postal service, send

Antonym: surface mail

Encyclopedia: Airmail