Tijuana vs urban center

Tijuana and urban center both are nouns.

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

Tijuana (noun)	urban center (noun)
a Mexican city just to the south of San Diego on the Lower California peninsula; popular among American tourists for racetracks and bullfights	a large and densely populated urban area; may include several independent administrative districts