[ˏdaiә'niziә]
n.
[古希腊]狂欢节, 酒神节

[ noun ]
an orgiastic festival in ancient Greece in honor of Dionysus (= Bacchus)
<noun.act>

Dionysia \Di`o*ny"si*a\, n. pl. [L., fr. Gr. ?.] (Class. Antiq.)
Any of the festivals held in honor of the Olympian god
Dionysus. They correspond to the Roman Bacchanalia; the
greater Dionysia were held at Athens in March or April, and
were celebrated with elaborate performances of both tragedies
and comedies.
[Webster 1913 Suppl.]