Kirghiz vs Kirgiz language

Kirghiz and Kirgiz language both are nouns.

Word	Noun	Adjective	Verb	Adverb
Kirghiz	Yes	No	No	No
Kirgiz language	Yes	No	No	No

As nouns, Kirghiz and Kirgiz language are synonyms defined as:

Other synonyms of Kirghiz include Khirghiz, Khirghiz language, Kirghiz language, Kirgiz.

Kirghiz (noun)	Kirgiz language (noun)
the Turkic language spoken by the Kirghiz	the Turkic language spoken by the Kirghiz
a landlocked republic in west central Asia bordering on northwestern China; formerly an Asian soviet but became independent in 1991
a member of a people vast regions of central Siberia