(INTRODUCTORY REMARK) [noun] [C] - a remark that you make to someone in order to start a conversationHe approached me with that tired old conversational gambit, "Don't I know you from somewhere?"I met a man at the party last night whose rather charmless opening gambit was "Is it as boring as it sounds being a librarian?"
GAMBIT
Meaning of GAMBIT in English
Cambridge English vocab. Кембриджский английский словарь. 2012