Glasgow vs urban center

Glasgow and urban center both are nouns.

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

Glasgow (noun)	urban center (noun)
largest city in Scotland; a port on the Clyde in west central Scotland; one of the great shipbuilding centers of the world	a large and densely populated urban area; may include several independent administrative districts