Lit. "dedication." The 8-day "Festival of Lights" celebrated beginning on the 25th day of the Hebrew month of Kislev to commemorate the victory of the Jews over the Seleucid army in 164 B.C.E., the re-purification of the Temple and the miraculous eight days the Temple candelabrum remained lit from one cruse of undefiled oil which would have been enough to keep it burning for only one day.