checkmate has definitions from the fields of chess,games
1
[ noun ] complete victory

Related terms

victory chess

2
[ verb ] (chess) place an opponent's king under an attack from which it cannot escape and thus ending the game; in a game of chess

Synonyms

mate

Examples

"Kasparov checkmated his opponent after only a few moves"

Related terms

beat chess

3
[ noun ] (chess,games) a chess move constituting an inescapable and indefensible attack on the opponent's king

Synonyms

mate

Related terms

chess_move

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