1. (noun) a system of conveying mail by aircraft

• airpost

1. (noun) letters and packages that are transported by aircraft

• mail

2. (noun) a system of conveying mail by aircraft

• mail
• mail service
• post
• postal service

3. (verb) send or transport by airmail

• mail
• post
• send

1. (verb) send or transport by airmail

• airmailer
• airpost