country vs Kievan Rus'

country and Kievan Rus' both are nouns.

Word	Noun	Adjective	Verb	Adverb
country	Yes	No	No	No
Kievan Rus'	Yes	No	No	No

country (noun)	Kievan Rus' (noun)
a politically organized body of people under a single government	the medieval Russian state established by Scandinavian traders in the 9th century; the capital was first in Novgorod and then in Kiev
the people who live in a nation or country
the territory occupied by a nation
an area outside of cities and towns
a particular geographical region of indefinite boundary (usually serving some special purpose or distinguished by its people or culture or geography)