Oaxaca de Juarez vs urban center

Oaxaca de Juarez and urban center both are nouns.

Word	Noun	Adjective	Verb	Adverb
Oaxaca de Juarez	Yes	No	No	No
urban center	Yes	No	No	No

Oaxaca de Juarez (noun)	urban center (noun)
a city of southeastern Mexico	a large and densely populated urban area; may include several independent administrative districts