Definitions for "Airmail"
Papers made in the lightest substance (usually below 40g/m2) for reasons of postage costs, consistent with strength and a good surface. Generally produced in white, off-white or a pale blue for stationery purposes.
The carriage of mail by air. The first regular airmail service began in 1870, when mail was carried from Paris - then besieged by German forces - over enemy lines by balloon. Many countries have issued postage stamps, stamped envelopes, postal cards and aerogrammes specially designated for airmail use. The first airmail stamp was issued by Italy in 1917 (Scott No. C1).
A term applied to a cover deemed to be carried via an airplane. Applies also to stamps especially produced for airmail.
letters and packages that are transported by aircraft
a system of conveying mail by aircraft
send or transport by airmail; "Letters to Europe from the U.S. are best airmailed"
a shot that carries completely over something in the air
a shot that carries completely over something. Similar to an 'airball' in basketball. Example: "I hit driver, 3 wood and then airmailed the green with my wedge."