Al-Hudaydah vs urban center

Al-Hudaydah and urban center both are nouns.

Word	Noun	Adjective	Verb	Adverb
Al-Hudaydah	Yes	No	No	No
urban center	Yes	No	No	No

Al-Hudaydah (noun)	urban center (noun)
an important port in Yemen on the Red Sea	a large and densely populated urban area; may include several independent administrative districts