city vs Yekaterinoslav

city and Yekaterinoslav both are nouns.

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

city (noun)	Yekaterinoslav (noun)
people living in a large densely populated municipality	city in east central Ukraine on the Dnieper River; center of metallurgical industry
a large and densely populated urban area; may include several independent administrative districts
an incorporated administrative district established by state charter