Pronunciation: (zī'un),[key] —n. 1. a hill in Jerusalem, on which the Temple was built (used to symbolize the city itself, esp. as a religious or spiritual center).
2. the Jewish people.
3. Palestine as the Jewish homeland and symbol of Judaism.
4. heaven as the final gathering place of true believers.
5. a city in NE Illinois. 17,861. Also,Sion(for defs. 1–4).