urban center vs Aberdeen

urban center and Aberdeen both are nouns.

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

urban center (noun)	Aberdeen (noun)
a large and densely populated urban area; may include several independent administrative districts	a city in northeastern Scotland on the North Sea
	a town in northeastern Maryland
	a town in northeastern South Dakota
	a town in western Washington