noun (n)

• an orgiastic festival in ancient Greece in honor of Dionysus (= Bacchus)(noun.act)

  Synonym:
  dionysia
  

  source: wordnet30
• a wild gathering involving excessive drinking and promiscuity(noun.act)

  Synonym:
  bacchanal, debauch, debauchery, drunken revelry, orgy, riot, saturnalia
  

  source: wordnet30
• A feast or an orgy in honor of Bacchus.(noun)

  source: webster1913