AEROGRAMME
Meaning of AEROGRAMME in English
aer ‧ o ‧ gramme BrE AmE ( also aerogram American English ) /ˈeərəɡræm $ ˈerə-/ noun [countable]
a very light letter you send by ↑ airmail
Longman Dictionary of Contemporary English.
Longman - Словарь современного английского языка.
2012