1. a device, action, or opening remark, typically one entailing a degree of risk, that is calculated to gain an advantage: "his resignation was a tactical gambit"
▪ (in chess) an opening in which a player makes a sacrifice, typically of a pawn, for the sake of some compensating advantage.
Word Originmid 17th century: originally gambett, from Italian gambetto, literally ‘tripping up’, from gamba ‘leg’.