poison - definition and synonyms


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  1. 1
    [countable/uncountable] a substance that can kill you or make you ill if you eat, drink, or breathe it

    Some mushrooms contain poison.

    rat poison (=poison used for killing rats)

  2. 2
    [countable/uncountable] something that has a negative effect

    Capitalism is regarded as a poison that is destroying the traditional way of life.

    1. a.
      [uncountable] words or actions that express the feeling of hating someone

      The look she gave me was pure poison.