VICE

(MORAL FAULT) [noun] - (a) moral fault or weakness in someone's character, or immoral activity, esp. involving illegal sex, drugs, etc.Greed, pride, envy, dishonesty, and lust are considered to be vices. [C]All the candidates have their virtues and vices (= their strengths and weaknesses). [C](esp. humorous) My one real vice (= bad habit) is chocolate.The chief of police said that he was committed to wiping out vice (= illegal immoral activities) in the area. [U]The drug dealers have been picked up by the vice squad (= police officers whose job it is to stop criminal immoral activities).It is believed that the pornographic films are being distributed by a vice ring (= a group of people involved in criminal immoral activities).