Shreveport vs urban center

Shreveport and urban center both are nouns.

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

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