urban center vs Durham

urban center and Durham both are nouns.

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

urban center (noun)	Durham (noun)
a large and densely populated urban area; may include several independent administrative districts	English breed of short-horned cattle
	a city of north central North Carolina; site of Duke University