Mandalay vs urban center

Mandalay and urban center both are nouns.

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

Mandalay (noun)	urban center (noun)
a city in central Myanmar to the north of Rangoon	a large and densely populated urban area; may include several independent administrative districts