urban center vs Hermosillo

urban center and Hermosillo both are nouns.

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

urban center (noun)	Hermosillo (noun)
a large and densely populated urban area; may include several independent administrative districts	a city in northwestern Mexico near the Gulf of California