b. the condition of the king after such a move
3. Chess used to signify that one's opponent's king is in checkmate
verb transitiveWord forms: ˈcheckˌmated or ˈcheckˌmating
4. Chess to place in checkmate
Webster’s New World College Dictionary, Fourth Edition, compiled by the
editors of Webster’s New World Dictionaries. Copyright © 2010 by Houghton
Mifflin Harcourt. Published by Houghton Mifflin Harcourt. All rights reserved.
Word origin of 'checkmate'ME chek mat < OFr eschec mat, ult. < Pers šāh māt, lit., the king is dead < šāh, king + māt, he is dead