urban center vs Donetske

urban center and Donetske both are nouns.

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

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