urban center vs Yekaterinoslav

urban center and Yekaterinoslav both are nouns.

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

urban center (noun)	Yekaterinoslav (noun)
a large and densely populated urban area; may include several independent administrative districts	city in east central Ukraine on the Dnieper River; center of metallurgical industry