Ephesus vs urban center

Ephesus and urban center both are nouns.

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

Ephesus (noun)	urban center (noun)
the third ecumenical council in 431 which declared Mary as mother of God and condemned Pelagius	a large and densely populated urban area; may include several independent administrative districts
an ancient Greek city on the western shore of Asia Minor in what is now Turkey; site of the Temple of Artemis; was a major trading center and played an important role in early Christianity