Republic of Armenia vs Commonwealth of Independent States

Republic of Armenia and Commonwealth of Independent States both are nouns.

Word	Noun	Adjective	Verb	Adverb
Republic of Armenia	Yes	No	No	No
Commonwealth of Independent States	Yes	No	No	No

Republic of Armenia (noun)	Commonwealth of Independent States (noun)
a landlocked republic in southwestern Asia; formerly an Asian soviet; modern Armenia is but a fragment of ancient Armenia which was one of the world's oldest civilizations; throughout 2500 years the Armenian people have been invaded and oppressed by their neighbors	an alliance made up of states that had been Soviet Socialist Republics in the Soviet Union prior to its dissolution in Dec 1991