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collision

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noun [countable/uncountable] collision pronunciation in British English /kəˈlɪʒ(ə)n/ 
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singularcollision
pluralcollisions

Related dictionary definitions

  1. 1
    an accident in which a person or vehicle that is moving crashes into something
    collision between:

    There was a collision between the French and German boats.

    in collision with:

    Their car was in collision with an ambulance.

    a head-on collision (=in which the front of one vehicle crashes into the front of another):

    The stolen car was involved in a head-on collision with a truck.

  2. 2
    a very serious argument
    a head-on collision (=a situation in which agreement is impossible):

    an attempt to avoid a head-on collision between the different branches of the party

    1. b.
      an occasion when two very different things meet or come together

      The affair is described as a collision between personality and principle.

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used with other nouns to describe the unexpected and often unwanted effects of a particular situation or trend

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