Republic of Belarus vs White Russia

Republic of Belarus and White Russia both are nouns.

Word	Noun	Adjective	Verb	Adverb
Republic of Belarus	Yes	No	No	No
White Russia	Yes	No	No	No

As nouns, Republic of Belarus and White Russia are synonyms defined as:

Republic of Belarus and White Russia: a landlocked republic in eastern Europe; formerly a European soviet

Other synonyms of Republic of Belarus include Belarus, Belorussia, Byelarus, Byelorussia.

Republic of Belarus (noun)	White Russia (noun)
a landlocked republic in eastern Europe; formerly a European soviet	a landlocked republic in eastern Europe; formerly a European soviet