urban center vs Katsina

urban center and Katsina both are nouns.

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

urban center (noun)	Katsina (noun)
a large and densely populated urban area; may include several independent administrative districts	a city in northern Nigeria; a major center of the Hausa people