Salzburg vs city

Salzburg and city both are nouns.

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

Salzburg (noun)	city (noun)
city in western Austria; a music center and birthplace of Mozart	people living in a large densely populated municipality
	a large and densely populated urban area; may include several independent administrative districts
	an incorporated administrative district established by state charter