Saratov vs city

Saratov and city both are nouns.

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

Saratov (noun)	city (noun)
an industrial city in the European part of Russia, and the administrative center of Saratov Oblast, Russia	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