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cul-de-sac

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noun [countable] American English pronunciation: cul-de-sac /ˌkʌl də ˈsæk/ American English pronunciation: cul-de-sac /ˌkʊl də ˈsæk/ 
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singularcul-de-sac
pluralcul-de-sacs
  1. 2
    a situation in which you can make no more progress or from which you cannot escape

    The government has backed itself into another ideological cul-de-sac.

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