Miami vs metropolis

Miami and metropolis both are nouns.

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

Miami (noun)	metropolis (noun)
a city and resort in southeastern Florida on Biscayne Bay; the best known city in Florida; a haven for retirees and a refuge for Cubans fleeing Castro	people living in a large densely populated municipality
a member of the extinct Algonquian people formerly living in northern Indiana and southern Michigan	a large and densely populated urban area; may include several independent administrative districts