co-opt - definition and synonyms

verb [transitive] 

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present tense
present participleco-opting
past tenseco-opted
past participleco-opted
  1. 2
    to try to control someone or stop them from harming you by bringing them into your own group or organization

    These industry-wide gatherings are used by the major companies to co-opt their smaller competitors.

  2. 3
    mainly American to take someone’s idea or plan and use it as if it were your own