Le Havre vs metropolis

Le Havre and metropolis both are nouns.

Word	Noun	Adjective	Verb	Adverb
Le Havre	Yes	No	No	No
metropolis	Yes	No	No	No

Le Havre (noun)	metropolis (noun)
a port city in northern France on the English Channel at the mouth of the Seine	people living in a large densely populated municipality
	a large and densely populated urban area; may include several independent administrative districts