metropolis vs Marseilles

metropolis and Marseilles both are nouns.

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

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