urban center vs Wuerzburg

urban center and Wuerzburg both are nouns.

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

urban center (noun)	Wuerzburg (noun)
a large and densely populated urban area; may include several independent administrative districts	a city of south central Germany