Definition of cul-de-sac noun from the Oxford Advanced American Dictionary

     

    cul-de-sac

     noun
    noun
    NAmE//ˈkʌl də ˌsæk//
     
    , NAmE//ˈkʊldə ˌsæk//
     
    (pl. cul-de-sacs or culs-de-sac)(from French)
     
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  1. 1a street that is closed at one end We live in a quiet cul-de-sac.
  2. 2(figurative) This particular brand of socialism had entered a cul-de-sac (= could make no further progress).
See the Oxford Advanced Learner's Dictionary entry: cul-de-sac