1. airmail - Noun
2. airmail - Verb
a system of conveying mail by aircraft
letters and packages that are transported by aircraft
send or transport by airmail
Source: WordNetLetters to Europe from the U.S. are best airmailed Source: Internet
Airmail stamps typically depict images of airplanes and/or famous pilots and were used when airmail was a special type of mail delivery separate from mail delivered by train, ship or automobile. Source: Internet
An IRC is exchangeable in a UPU member country for the minimum postage of a priority or unregistered airmail letter to a foreign country. Source: Internet
Also monitoring foreign mail and acting as counter-espionage to help secure allied victory. citation On August 12, 1918, the Post Office Department took over airmail service from the United States Army Air Service (USAAS). Source: Internet
Airmail is available and costs approximately twice the cost of surface mail. Source: Internet
At the time an IRC could be exchanged for a single-rate, ordinary postage stamp for surface delivery to a foreign country, as this was before the introduction of airmail services. Source: Internet