Lubeck vs urban center

Lubeck and urban center both are nouns.

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

Lubeck (noun)	urban center (noun)
a city in northwestern Germany and an important Baltic port; a leading member of the Hanseatic League	a large and densely populated urban area; may include several independent administrative districts