Homyel vs urban center

Homyel and urban center both are nouns.

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

Homyel (noun)	urban center (noun)
industrial city of Belarus to the southeast of Minsk	a large and densely populated urban area; may include several independent administrative districts