city vs Czestochowa

city and Czestochowa both are nouns.

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

city (noun)	Czestochowa (noun)
people living in a large densely populated municipality	a city of southern Poland whose church contains the statue of the black Madonna which attracts many pilgrims
a large and densely populated urban area; may include several independent administrative districts
an incorporated administrative district established by state charter