Definition of opponent noun from the Oxford Advanced Learner's Dictionary



    BrE BrE//əˈpəʊnənt//
    ; NAmE NAmE//əˈpoʊnənt//
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  1. 1  a person that you are playing or fighting against in a game, competition, argument, etc. synonym adversary a political opponent a dangerous/worthy/formidable opponent The team's opponents are unbeaten so far this season.
  2. 2  opponent (of something) a person who is against something and tries to change or stop it opponents of abortion opponents of the regime
  3. Word Originlate 16th cent. (denoting a person opening an academic debate by proposing objections to a philosophical or religious thesis): from Latin opponent- ‘setting against’, from the verb opponere, from ob- ‘against’ + ponere ‘place’.Extra examples He has knocked out 15 opponents in 20 fights. This season the team is holding opponents to 88.9 points per game. Today she faces her toughest opponent on Centre Court. As a man he was greatly respected, even by his political opponents. He drew his sword and turned to face his opponent. He has emerged as a leading opponent of the reforms. She proved a formidable opponent in the debating chamber. The regime has been accused of torturing and killing its opponents. The team’s opponents are unbeaten so far this season.
See the Oxford Advanced American Dictionary entry: opponent