Synonyms for Den of vice:

• n.

  •house of ill repute (noun)
  • cathouse,
  • whorehouse,
  • bordellos,
  • massage parlor,
  • house of ill fame,
  • house of ill repute,
  • bordello,
  • joy house,
  • bawdyhouse,
  • brothel.

• Other synonyms:

  •Other relevant words:
  • stew,
  • joint,
  • house of prostitution,
  • tenderloin,
  • bagnio,
  • red-light district,
  • crib.