Guayaquil vs urban center

Guayaquil and urban center both are nouns.

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

Guayaquil (noun)	urban center (noun)
the largest city of Ecuador	a large and densely populated urban area; may include several independent administrative districts