urban center vs Herat

urban center and Herat both are nouns.

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

urban center (noun)	Herat (noun)
a large and densely populated urban area; may include several independent administrative districts	a city in northwestern Afghanistan on the site of several ancient cities