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air letter

air letter

6.4
A lightweight sheet that folds into its own envelope to send by air mail
  • noun
  • /ɛr ˈlɛtər/
  • Archaic
translation icon : aerograma
  • The post office recommended using an air letter for faster delivery to international destinations.

Examples

  • Mrs. Rhodes's glance moves in an arc, settling on the air letter in Laila's lap.

    Fiction book (1992)
  • She picks up the mail and sets it on the couch, with the blue air letter from Wadallah on top of the pile.

    Fiction book (1992)
  • I received an air letter from my friend in Canada that was so light it barely weighed anything.

  • To save space, I folded the air letter into its own envelope before mailing it.

Synonyms

letter
vsair letter
1.0

A written message sent to a person or organization, often by mail

is a specialized thin sheet made for sending by air without extra envelope
aerogram
vsair letter
  • Archaic
1 9.1

A thin letter that folds into its own envelope for sending by air

is identical in form and purpose, often issued with postage included
lettercard
vsair letter
  • Archaic
8.0

A folded card that you write inside and seal before mailing

is lighter and made specifically for air transport rather than regular mail
airmail letter
vsair letter
2.5

A letter sent by air to another country so it arrives faster

is the physical lightweight sheet designed as its own envelope

How Light

envelope
322 1.0
letter
1.0
air letter
  • Archaic
6.4

Surface Forms

air letter singular
air letters plural

Morphology

air + letter

The meaning 'a lightweight letter intended for sending by air/airmail' is directly derivable from combining 'air' (by airplane/airmail) with 'letter' (a posted message). This is a straightforward compound noun pattern found across languages, so a B1 learner who knows both constituents will readily infer the MWE's basic meaning (the specific folded format is a form detail but does not reduce compositional transparency).

Etymology

Air letter comes from early air mail. To save space and money on planes, post offices made a single thin sheet that folded into its own envelope, so the air part shows it was for plane travel and the letter part shows it was a message. So, it means 'a lightweight letter sent by air mail'.