Innsbruck vs metropolis

Innsbruck and metropolis both are nouns.

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

Innsbruck (noun)	metropolis (noun)
city in southwestern Austria; known as a summer and winter resort	people living in a large densely populated municipality
	a large and densely populated urban area; may include several independent administrative districts