Oujda vs urban center

Oujda and urban center both are nouns.

Word	Noun	Adjective	Verb	Adverb
Oujda	Yes	No	No	No
urban center	Yes	No	No	No

Oujda (noun)	urban center (noun)
a city in northeastern Morocco near the Algerian border	a large and densely populated urban area; may include several independent administrative districts