Siracusa vs metropolis

Siracusa and metropolis both are nouns.

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

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