country vs Rus

country and Rus both are nouns.

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

country (noun)	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)