Venezia vs urban center

Venezia and urban center both are nouns.

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

Venezia (noun)	urban center (noun)
the provincial capital of Veneto; built on 118 islands within a lagoon in the Gulf of Venice; has canals instead of streets; one of Italy's major ports and a famous tourist attraction	a large and densely populated urban area; may include several independent administrative districts