Wilmington vs metropolis

Wilmington and metropolis both are nouns.

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

Wilmington (noun)	metropolis (noun)
the largest city in Delaware	people living in a large densely populated municipality
a town in southeastern North Carolina on the Cape Fear River	a large and densely populated urban area; may include several independent administrative districts