metropolis vs Sodom

metropolis and Sodom both are nouns.

Word	Noun	Adjective	Verb	Adverb
metropolis	Yes	No	No	No
Sodom	Yes	No	No	No

metropolis (noun)	Sodom (noun)
people living in a large densely populated municipality	(Old Testament) an ancient city near the Dead Sea that (along with Gomorrah) was destroyed by God for the wickedness of its inhabitants
a large and densely populated urban area; may include several independent administrative districts