Dead Sea vs Zion

Dead Sea and Zion both are nouns.

Word	Noun	Adjective	Verb	Adverb
Dead Sea	Yes	No	No	No
Zion	Yes	No	No	No

Dead Sea (noun)	Zion (noun)
a saltwater lake on the border between Israel and Jordan; its surface in 1292 feet below sea level	an imaginary place considered to be perfect or ideal
	Jewish republic in southwestern Asia at eastern end of Mediterranean; formerly part of Palestine
	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