urban center vs Korinthos

urban center and Korinthos both are nouns.

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

urban center (noun)	Korinthos (noun)
a large and densely populated urban area; may include several independent administrative districts	the modern Greek port near the site of the ancient city that was second only to Athens