Sudbury vs metropolis

Sudbury and metropolis both are nouns.

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

Sudbury (noun)	metropolis (noun)
a city in south central Canada in Ontario; a major nickel mining center	people living in a large densely populated municipality
	a large and densely populated urban area; may include several independent administrative districts