mail ‧ bag /ˈmeɪlbæɡ/ BrE AmE noun [countable]
1 . a large strong bag used for carrying mail on trains etc
2 . American English a bag used to deliver letters to people’s houses SYN postbag British English
mail ‧ bag /ˈmeɪlbæɡ/ BrE AmE noun [countable]
1 . a large strong bag used for carrying mail on trains etc
2 . American English a bag used to deliver letters to people’s houses SYN postbag British English
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012