Zion (Noun) — Originally a stronghold captured by David (the 2nd king of the Israelites); above it was built a temple and later the name extended to the whole hill; finally it became a synonym for the city of Jerusalem. ex. "the inhabitants of Jerusalem are personified as 'the daughter of Zion'"
Zion (Noun) — Jewish republic in southwestern Asia at eastern end of Mediterranean; formerly part of Palestine.
Zion (Noun) — An imaginary place considered to be perfect or ideal.