cul-de-sac
US /ˈkʌl.də.sæk/
UK /ˈkʌl.də.sæk/
1.
a street or road that is closed at one end, usually with a circular area for turning around at the end
:
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Our house is located at the end of a quiet cul-de-sac.
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Children often play safely in the cul-de-sac because there's no through traffic.
2.
a situation from which further progress is impossible
:
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The negotiations reached a cul-de-sac, with neither side willing to compromise.
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His career seemed to have reached a cul-de-sac after the company downsized.