Linz vs urban center

Linz and urban center both are nouns.

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

Linz (noun)	urban center (noun)
city in northern Austria on the Danube; noted as a cultural center	a large and densely populated urban area; may include several independent administrative districts