Definition of checkmate noun from the Oxford Advanced American Dictionary

     

    checkmate

     noun
    noun
    NAmE//ˈtʃɛkmeɪt//
     
    ,
     
    (also mate)[uncountable]
     
    jump to other results
  1. 1(in chess) a position in which one player cannot prevent his or her king (= the most important piece) being captured and therefore loses the game see also check compare stalemate
  2. 2a situation in which someone has been completely defeated
checkmateverbcheckmate somebody/something
 
jump to other results
His king had been checkmated. She hoped the plan would checkmate her opponents.