urban center vs Albuquerque

urban center and Albuquerque both are nouns.

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

urban center (noun)	Albuquerque (noun)
a large and densely populated urban area; may include several independent administrative districts	the largest city in New Mexico; located in central New Mexico on the Rio Grande river