urban center vs Samaria

urban center and Samaria both are nouns.

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

urban center (noun)	Samaria (noun)
a large and densely populated urban area; may include several independent administrative districts	an ancient city in central Palestine founded in the 9th century BC as the capital of the northern Hebrew kingdom of Israel; the site is in present-day northwestern Jordan