aerogram
noun
aero·gram
ˈer-ə-ˌgram
variants
or chiefly British aerogramme
plural aerograms or aerogrammes
: a sheet of airmail stationery that can be folded and sealed with the message inside and the address outside : air letter sense 2
While we were away, I know the highlight of Mom's day was slitting open a pale blue, lightweight aerogram …—Valerie Marier
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Merriam-Webster unabridged



