city vs Zaragoza

city and Zaragoza both are nouns.

Word	Noun	Adjective	Verb	Adverb
city	Yes	No	No	No
Zaragoza	Yes	No	No	No

city (noun)	Zaragoza (noun)
people living in a large densely populated municipality	an ancient city on the Ebro River in northeastern Spain; formerly the capital of Aragon
a large and densely populated urban area; may include several independent administrative districts
an incorporated administrative district established by state charter