metropolis vs Split

metropolis and Split both are nouns.

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

metropolis (noun)	Split (noun)
people living in a large densely populated municipality	an old Croatian city on the Adriatic Sea
a large and densely populated urban area; may include several independent administrative districts