Grenoble vs metropolis

Grenoble and metropolis both are nouns.

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

Grenoble (noun)	metropolis (noun)
a city in southeastern France on the Isere River	people living in a large densely populated municipality
	a large and densely populated urban area; may include several independent administrative districts