urban center vs Donetsk

urban center and Donetsk both are nouns.

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

urban center (noun)	Donetsk (noun)
a large and densely populated urban area; may include several independent administrative districts	an industrial city in the Donets Basin