urban center vs Sao Joao de Meriti

urban center and Sao Joao de Meriti both are nouns.

Word	Noun	Adjective	Verb	Adverb
urban center	Yes	No	No	No
Sao Joao de Meriti	Yes	No	No	No

urban center (noun)	Sao Joao de Meriti (noun)
a large and densely populated urban area; may include several independent administrative districts	a city in southeastern Brazil that is a residential suburb of Rio de Janeiro