Sao Joao de Meriti vs urban center

Sao Joao de Meriti and urban center both are nouns.

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

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