Tajikistan vs Tadjik

Tajikistan and Tadjik both are nouns.

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

As nouns, Tajikistan and Tadjik are synonyms defined as:

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

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

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