Meaning of CHECK in English
The act of attacking the opponent's king. When check takes place, a player usually calls out "check" so the opponent is aware of the threat. The opponent must get out of check on the next move, either by moving the King, capturing the attacking piece, or moving another piece between the King and the attacking piece.
English glossary of chess terms. Английский глоссарий шахматных терминов. 2012