metropolis vs financial center

metropolis and financial center both are nouns.

Word	Noun	Adjective	Verb	Adverb
metropolis	Yes	No	No	No
financial center	Yes	No	No	No

metropolis (noun)	financial center (noun)
people living in a large densely populated municipality	the part of a city where financial institutions are centered
a large and densely populated urban area; may include several independent administrative districts