Sevilla vs urban center

Sevilla and urban center both are nouns.

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

Sevilla (noun)	urban center (noun)
a city in southwestern Spain; a major port and cultural center; the capital of bullfighting in Spain	a large and densely populated urban area; may include several independent administrative districts