city vs Valencia

city and Valencia both are nouns.

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

city (noun)	Valencia (noun)
people living in a large densely populated municipality	a city in eastern Spain on the Mediterranean
a large and densely populated urban area; may include several independent administrative districts	an industrial city in northern Venezuela
an incorporated administrative district established by state charter