Kyzyl Kum vs Kizil Kum

Kyzyl Kum and Kizil Kum both are nouns.

Word	Noun	Adjective	Verb	Adverb
Kyzyl Kum	Yes	No	No	No
Kizil Kum	Yes	No	No	No

As nouns, Kyzyl Kum and Kizil Kum are synonyms defined as:

Kyzyl Kum and Kizil Kum: a desert in Uzbekistan to the southeast of the Aral Sea

Other synonyms of Kyzyl Kum include Qizil Qum.

Kyzyl Kum (noun)	Kizil Kum (noun)
a desert in Uzbekistan to the southeast of the Aral Sea	a desert in Uzbekistan to the southeast of the Aral Sea