poison - definition and synonyms

verb [transitive] 

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present tense
present participlepoisoning
past tensepoisoned
past participlepoisoned
  1. 1
    to kill someone or make them very ill by giving them poison

    He was suspected of poisoning his wife.

    1. a.
      to put poison into food or drink because you want to kill someone or make them ill

      They have threatened to poison the city’s drinking water.

  2. 3
    to have a bad influence on something

    The decision had poisoned relations between Britain and France.

    poison someone’s mind:

    Do you believe that television is poisoning the minds of our children?