1. person who is on the other side of a fight, game, or discussion; person fighting, struggling or speaking against another کسی که طرف دیگر جنگ ، بازی یا بحث است ، کسی که علیه شخص دیگری می جنگد ، مبارزه می کند یا حرف می زند a. The Russian chess player underestimated his opponent and lost. b. He was a bitter opponent of costly urban reform. c. Seeing his flabby opponent, Slugger was sure he would be victorious.