urban center vs Aquila degli Abruzzi

urban center and Aquila degli Abruzzi both are nouns.

Word	Noun	Adjective	Verb	Adverb
urban center	Yes	No	No	No
Aquila degli Abruzzi	Yes	No	No	No

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