urban center vs Mazar-i-Sharif

urban center and Mazar-i-Sharif both are nouns.

Word	Noun	Adjective	Verb	Adverb
urban center	Yes	No	No	No
Mazar-i-Sharif	Yes	No	No	No

urban center (noun)	Mazar-i-Sharif (noun)
a large and densely populated urban area; may include several independent administrative districts	a city in northern Afghanistan