urban center vs Campeche

urban center and Campeche both are nouns.

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

urban center (noun)	Campeche (noun)
a large and densely populated urban area; may include several independent administrative districts	a Mexican city on the Bay of Campeche
	a Mexican state on the eastern part of the Gulf of Campeche