Definition of oppose verb from the Oxford Advanced American Dictionary

      

    oppose

     verb
    verb
    NAmE//əˈpoʊz//
     
    Verb Forms present simple I / you / we / they oppose
     
    he / she / it opposes
     
    past simple opposed
     
    -ing form opposing
     
     
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  1. 1 to disagree strongly with someone's plan, policy, etc. and try to change it or prevent it from succeeding oppose somebody/something This party would bitterly oppose the reintroduction of the death penalty. He threw all those who opposed him into prison. oppose (somebody/something) doing something I would oppose changing the law. compare propose
  2. 2 oppose somebody to compete with someone in a contest She intends to oppose the incumbent in the next election.
See the Oxford Advanced Learner's Dictionary entry: oppose