Fukuoka vs urban center

Fukuoka and urban center both are nouns.

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

Fukuoka (noun)	urban center (noun)
a city in southern Japan on Kyushu	a large and densely populated urban area; may include several independent administrative districts