metropolis vs Wuhan

metropolis and Wuhan both are nouns.

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

metropolis (noun)	Wuhan (noun)
people living in a large densely populated municipality	a city of central China on the Chang Jiang; the commercial and industrial center of central China
a large and densely populated urban area; may include several independent administrative districts