(US, colloquial) To die. / Used other than figuratively or idiomatically: see hand in, one's, checks.

(colloquial) Consider the consequences of your actions before you end up in trouble.

(chess) Word called out by the victor when making a move that wins the game. / (by extension) Said when one has placed a person in a losing situation with no escape.

The conclusive victory in a game of chess that occurs when an opponent's king is threatened with unavoidable capture. / (figuratively, by extension) Any losing situation with no escape; utter defeat.

(transitive, chess) To put the king of an opponent into checkmate. / (transitive, by extension) To place in a losing situation that has no escape.

A routine visit to the doctor, dentist, or the like. / A routine inspection.

plural of checker

(board games, US, Canada, in the singular) A game for two players played on a chessboard; the players have 12 pieces each, and the object is to capture all the opponent’s pieces by jumping over them. Other European varieties have larger boards and more playing pieces.

Third-person singular simple present indicative form of checker

The process of checking out of a hotel, or the latest time to vacate a room in one. / The process of checking out items at a supermarket or library. / The place in a supermarket where this is done.