urban center vs Maiduguri

urban center and Maiduguri both are nouns.

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

urban center (noun)	Maiduguri (noun)
a large and densely populated urban area; may include several independent administrative districts	a city in northeastern Nigeria; an agricultural trading center