Aerogram
ahd-5
noun.
An airmail letter in the form of a lightweight sheet of stationery that folds into its own envelope for mailing at a low postage rate.
Wiktionary, Creative Commons Attribution/Share-Alike License
noun.
a thin piece of
foldable
and
gummed
paper
for writing a
letter
for transit via
airmail
noun.
a
wireless
message
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun.
a letter sent by air mail