urban center vs Shreveport

urban center and Shreveport both are nouns.

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

urban center (noun)	Shreveport (noun)
a large and densely populated urban area; may include several independent administrative districts	a city in northwest Louisiana on the Red River near the Texas border