Wordnet 3.0
NOUN (1)
1.
the ninth month of the civil year;
the third month of the ecclesiastical year in the Jewish calendar (in May and June);
[syn: Sivan, Siwan]
The Collaborative International Dictionary of English v.0.48:
Sivan \Si"van\, n. [Heb. s[imac]v[=a]n.]
The third month of the Jewish ecclesiastical year; --
supposed to correspond nearly with our month of June.
[1913 Webster]
WordNet (r) 3.0 (2006):
Sivan
n 1: the ninth month of the civil year; the third month of the
ecclesiastical year in the Jewish calendar (in May and
June) [syn: Sivan, Siwan]