urban center vs Medina

urban center and Medina both are nouns.

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

urban center (noun)	Medina (noun)
a large and densely populated urban area; may include several independent administrative districts	a city in western Saudi Arabia; site of the tomb of Muhammad; the second most holy city of Islam