Chanukah is the Jewish eight-day, wintertime “festival of lights,” celebrated with a nightly menorah lighting, special prayers and fried foods.
The Hebrew word Chanukah means “dedication,” and is thus named because it celebrates the rededication of the Holy Temple (as you’ll read below). Also spelled Hanukkah (or variations of that spelling), the Hebrew word is actually pronounced with a guttural, “kh” sound, kha-nu-kah, not tcha-new-kah. [more]
The BBC sites devoted to Hanukkah
Hanukkah or Chanukah is the Jewish Festival of Lights. It dates back to two centuries before the beginning of Christianity.
The festival begins on the 25th day of Kislev and is celebrated for eight days. In the western calendar Hanukkah is celebrated in November or December. [more]
The Jewish Virtual Library Hannukah
Hanukkah is not the Jewish Christmas—but they are cousins. Rabbi Daniel Polish in America Magazine