Word Study
air horn |
air hose |
air hostess |
air jacket |
air lane |
air letter
| air level
| air line
| air lock
| air mail
| air marshal
air letter
WORDNET DICTIONARY
Noun air letter has 1 sense
- air letter(n = noun.communication) aerogram, aerogramme, airmail letter - a letter sent by air mail; Array is a kind of letter, missive
For further exploring for "air letter" in Webster Dictionary Online