urban center vs Cebu

urban center and Cebu both are nouns.

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

urban center (noun)	Cebu (noun)
a large and densely populated urban area; may include several independent administrative districts	an important seaport on the island of Cebu in the Philippines
	one of the Visayan islands of the central Philippines; important for its fine harbor