urban center vs Osasco

urban center and Osasco both are nouns.

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

urban center (noun)	Osasco (noun)
a large and densely populated urban area; may include several independent administrative districts	a city in southeastern Brazil; suburb of Sao Paulo