Republic of Tajikistan vs Tadjik

Republic of Tajikistan and Tadjik both are nouns.

Word	Noun	Adjective	Verb	Adverb
Republic of Tajikistan	Yes	No	No	No
Tadjik	Yes	No	No	No

As nouns, Republic of Tajikistan and Tadjik are synonyms defined as:

Republic of Tajikistan and Tadjik: a landlocked mountainous republic in southeast central Asia to the north of Afghanistan; formerly an Asian soviet

Other synonyms of Republic of Tajikistan include Tadzhik, Tadzhikistan, Tajik, Tajikistan.

Republic of Tajikistan (noun)	Tadjik (noun)
a landlocked mountainous republic in southeast central Asia to the north of Afghanistan; formerly an Asian soviet	a landlocked mountainous republic in southeast central Asia to the north of Afghanistan; formerly an Asian soviet