metropolis vs Florence

metropolis and Florence both are nouns.

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

metropolis (noun)	Florence (noun)
people living in a large densely populated municipality	a city in central Italy on the Arno; provincial capital of Tuscany; center of the Italian Renaissance from 14th to 16th centuries
a large and densely populated urban area; may include several independent administrative districts	a town in northeast South Carolina; transportation center