city vs Valparaiso

city and Valparaiso both are nouns.

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

city (noun)	Valparaiso (noun)
people living in a large densely populated municipality	the chief port and second largest city of Chile; located on a wide harbor in central Chile
a large and densely populated urban area; may include several independent administrative districts
an incorporated administrative district established by state charter