urban center vs Sao Jose dos Campos

urban center and Sao Jose dos Campos both are nouns.

Word	Noun	Adjective	Verb	Adverb
urban center	Yes	No	No	No
Sao Jose dos Campos	Yes	No	No	No

urban center (noun)	Sao Jose dos Campos (noun)
a large and densely populated urban area; may include several independent administrative districts	a city in southeastern Brazil to the northeast of Sao Paulo