Kharkiv vs urban center

Kharkiv and urban center both are nouns.

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

Kharkiv (noun)	urban center (noun)
a city in northeastern Ukraine; former capital of the Ukraine	a large and densely populated urban area; may include several independent administrative districts