metropolis vs Sevastopol

metropolis and Sevastopol both are nouns.

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

metropolis (noun)	Sevastopol (noun)
people living in a large densely populated municipality	a city in southern Ukraine on the Black Sea
a large and densely populated urban area; may include several independent administrative districts