What is the meaning of Cul-de-sac?

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 sacklike cavity, a tube open at one end only.

cul-de-sac

dead end, cul-de-sac (a path that goes nowhere)

impasse

cul-de-sac; blind alley (street that leads nowhere)

cul-de-sac (circular area at the end of a dead end street)

cul-de-sac; dead end; impasse

cul-de-sac; blind alley (street that leads nowhere)

cul-de-sac (circular area at the end of a dead end street)

cul-de-sac; dead end; impasse

Source: wiktionary.org