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English definition of “opponent”

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opponent

noun [C] uk   /əˈpəʊ.nənt/ us    /-ˈpoʊ-/
B2 a person who disagrees with something and speaks against it or tries to change it: a political opponent Leading opponents of the proposed cuts in defence spending will meet later today.B2 a person who someone is competing against in a sports event: In the second game, her opponent hurt her leg and had to retire.
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(Definition of opponent from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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