Quezon City vs urban center

Quezon City and urban center both are nouns.

Word	Noun	Adjective	Verb	Adverb
Quezon City	Yes	No	No	No
urban center	Yes	No	No	No

Quezon City (noun)	urban center (noun)
city on Luzon adjoining Manila	a large and densely populated urban area; may include several independent administrative districts