metropolis vs Siracusa

metropolis and Siracusa both are nouns.

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

metropolis (noun)	Siracusa (noun)
people living in a large densely populated municipality	a city in southeastern Sicily that was founded by Corinthians in the 8th century BC
a large and densely populated urban area; may include several independent administrative districts