Republic of Artsakh vs Nagorno-Karabakh Republic

Republic of Artsakh and Nagorno-Karabakh Republic both are nouns.

Word	Noun	Adjective	Verb	Adverb
Republic of Artsakh	Yes	No	No	No
Nagorno-Karabakh Republic	Yes	No	No	No

As nouns, Republic of Artsakh and Nagorno-Karabakh Republic are synonyms defined as:

Republic of Artsakh and Nagorno-Karabakh Republic: unrecognized de-facto state in South Caucasus

Other synonyms of Republic of Artsakh include Artsakh, Nagorno-Karabakh.

Republic of Artsakh (noun)	Nagorno-Karabakh Republic (noun)
unrecognized de-facto state in South Caucasus	unrecognized de-facto state in South Caucasus