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witness

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verb British English pronunciation: witness /ˈwɪtnəs/ 
Word Forms
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present tense
I/you/we/theywitness
he/she/itwitnesses
present participlewitnessing
past tensewitnessed
past participlewitnessed
  1. 1
    [transitive] to see something happen, for example a crime or an accident

    Several journalists witnessed the incident in which eight people were injured.

    Ambulance crews witness scenes like these every day.

    1. a.
      to be present when something important happens

      What we are witnessing is a party running out of ideas.

  2. 2
    [transitive] to watch someone sign an official document, and then sign it yourself to state that you have watched them

    Could you witness my signature on this visa application?

  3. 4
    [transitive] used before you give an example that proves what you have just said

    He was as much a journalist as a storyteller: witness the fact that many of his concerns are still relevant today.

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