let‧ter‧box /ˈletəbɒks $ ˈletərbɑːks/ noun [countable]

1. British English a narrow hole in a door, or a special box outside a house where letters, packages etc are delivered Synonym : mail box American English

2. British English a box in a post office or street, in which letters are posted Synonym : post box British English, mail box American English

[TahlilGaran] Dictionary of Contemporary English ▲