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coincidence

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noun British English pronunciation: coincidence /kəʊˈɪnsɪd(ə)ns/ 
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singularcoincidence
pluralcoincidences
  1. 1
    [countable/uncountable] a situation in which separate things happen by chance at the same time or in the same way
    coincidence that:

    It was rather a coincidence that she appeared at that exact moment.

    by coincidence:

    By coincidence, his teaching contract finished at about the same time his first book was published.

    no coincidence:

    It is no coincidence that coastal communities have often been deeply religious.

    pure/sheer coincidence:

    It might have been planned or it might have been pure coincidence.

  2. 2
    [singular/uncountable] formal a situation in which ideas or opinions are the same
    coincidence of:

    They have a substantial coincidence of business interests.

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