Karakum Desert vs Kara Kum

Karakum Desert and Kara Kum both are nouns.

Word	Noun	Adjective	Verb	Adverb
Karakum Desert	Yes	No	No	No
Kara Kum	Yes	No	No	No

As nouns, Karakum Desert and Kara Kum are synonyms defined as:

Karakum Desert and Kara Kum: a desert in Turkmenistan to the south of the Aral Sea

Other synonyms of Karakum Desert include Qara Qum, Turkestan Desert.

Karakum Desert (noun)	Kara Kum (noun)
a desert in Turkmenistan to the south of the Aral Sea	a desert in Turkmenistan to the south of the Aral Sea