metropolis vs Aquila degli Abruzzi

metropolis and Aquila degli Abruzzi both are nouns.

Word	Noun	Adjective	Verb	Adverb
metropolis	Yes	No	No	No
Aquila degli Abruzzi	Yes	No	No	No

metropolis (noun)	Aquila degli Abruzzi (noun)
people living in a large densely populated municipality	the provincial capital of the Abruzzi region in central Italy
a large and densely populated urban area; may include several independent administrative districts