knock·outBrE/ˈnɒkaʊt/NAmE/ˈnɑːkaʊt/adjective[only before noun](especiallyBrE) aknockoutcompetitionisoneinwhichthewinningplayer/teamateachstagecompetesinthenextstageandthelosingonenolongertakespartinthecompetition淘汰赛的;淘汰的◆theknockoutstagesofthetournament锦标赛的淘汰赛阶段aknockoutblowisonethathitssbsohardthattheycannolongergetup击败对手的