Tacoma vs metropolis

Tacoma and metropolis both are nouns.

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

Tacoma (noun)	metropolis (noun)
a city in west central Washington on an arm of Puget Sound to the south of Seattle	people living in a large densely populated municipality
	a large and densely populated urban area; may include several independent administrative districts