checkmate /ˈt͡ʃɛkmeɪt/exclamation 2noun 2verb 2forms 3 exclamation2 •Word called out by the victor when making a move that wins the game. •Said when one has placed a person in a losing situation with no escape. noun2 •The conclusive victory in a game of chess that occurs when an opponent's king is threatened with unavoidable capture.This immediately ends the game, provided that the move producing the checkmate position was in accordance with Article 3 and Articles 4.2 – 4.7. — 2022 •(figurative) Any losing situation with no escape; utter defeat. verb2 •To put the king of an opponent into checkmate.My opponent checkmated me in four moves! •To place in a losing situation that has no escape. formscheckmated · checkmating · checkmates