urban center vs Incheon

urban center and Incheon both are nouns.

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

urban center (noun)	Incheon (noun)
a large and densely populated urban area; may include several independent administrative districts	a port city in western South Korea on the Yellow Sea