BON MOT Meaning of BON MOT in English bon mot /ˌbɒn ˈməʊ $ ˌbɒːn ˈmoʊ/ BrE AmE noun [countable] written [ Date: 1700-1800 ; Language: French ; Origin: 'good word' ] a clever remark Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012