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collide

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verb [intransitive] collide pronunciation in British English /kəˈlaɪd/ 
Word Forms
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present tense
I/you/we/theycollide
he/she/itcollides
present participlecolliding
past tensecollided
past participlecollided
  1. 1
    if people or things collide, they crash into each other

    The two trains collided about a mile outside the city.

    collide with:

    The truck collided with a row of parked cars.

  2. 2
    to find it impossible to agree about something
    collide with:

    It was the first time she had collided with Gordon's mother over childcare.

    1. a.
      if ideas or beliefs collide, they are very different and do not work together
      collide with:

      His religious beliefs often collided with the realities of his life.

    2. b.
      to meet or come together with something that is very different

      They lived in different worlds, which had now collided.

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