Mazatlan vs urban center

Mazatlan and urban center both are nouns.

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

Mazatlan (noun)	urban center (noun)
a port city in western Mexico on the Pacific Ocean; tourist center	a large and densely populated urban area; may include several independent administrative districts