metropolis vs Oaxaca de Juarez

metropolis and Oaxaca de Juarez both are nouns.

Word	Noun	Adjective	Verb	Adverb
metropolis	Yes	No	No	No
Oaxaca de Juarez	Yes	No	No	No

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