CUL-DE-SAC Meaning of CUL-DE-SAC in English [cul-de-sac] n, pl culs-de-sac also cul-de-sacs [F, lit., bottom of the bag] (1738) 1: a blind diverticulum or pouch 2: a street or passage closed at one end 3: blind alley Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012