urban center vs Milano

urban center and Milano both are nouns.

Word	Noun	Adjective	Verb	Adverb
urban center	Yes	No	No	No
Milano	Yes	No	No	No

urban center (noun)	Milano (noun)
a large and densely populated urban area; may include several independent administrative districts	the capital of Lombardy in northern Italy; has been an international center of trade and industry since the Middle Ages