WordNet (r) 3.0 (2006):

Channukkah
    n 1: (Judaism) an eight-day Jewish holiday commemorating the
         rededication of the Temple of Jerusalem in 165 BC [syn:
         Hanukkah, Hanukah, Hannukah, Chanukah, Chanukkah,
         Channukah, Channukkah, Festival of Lights, Feast of
         Lights, Feast of Dedication, Feast of the Dedication]