Adrianopolis vs urban center

Adrianopolis and urban center both are nouns.

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

Adrianopolis (noun)	urban center (noun)
a city in northwestern Turkey; a Thracian town that was rebuilt and renamed by the Roman Emperor Hadrian	a large and densely populated urban area; may include several independent administrative districts