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Phonetics
/ˈkʌldəsak/
/ˈkʌldəsæk/
noun
A blind alley or dead end street.
A circular area at the end of a dead end street to allow cars to turn around, designed so children can play on the street, with little or no through-traffic.
An impasse.
A sack-like cavity, a tube open at one end only.