Fresno vs urban center

Fresno and urban center both are nouns.

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

Fresno (noun)	urban center (noun)
a city in south central California in the San Joaquin Valley; center of an important agricultural area and gateway to the Sierra Nevada Mountains	a large and densely populated urban area; may include several independent administrative districts