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poison - definition and synonyms


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verb [transitive] poison pronunciation in British English /ˈpɔɪz(ə)n/
Word Forms
present tense
present participlepoisoning
past tensepoisoned
past participlepoisoned
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  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. 2
    to create pollution that damages part of the environment
    Waste from the factories is poisoning the water supply.
  3. 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?


a course of study which is much shorter than a university course and focuses on the skills you need for a job, especially computer-related skills

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an ancient Roman system of underfloor heating, used to heat houses with hot air; from the Latin 'hypocaustum'

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