Great Salt Desert vs Dasht-e-Kavir

Great Salt Desert and Dasht-e-Kavir both are nouns.

Word	Noun	Adjective	Verb	Adverb
Great Salt Desert	Yes	No	No	No
Dasht-e-Kavir	Yes	No	No	No

As nouns, Great Salt Desert and Dasht-e-Kavir are synonyms defined as:

Great Salt Desert and Dasht-e-Kavir: a salt desert in north central Iran

Other synonyms of Great Salt Desert include Dasht-e Kavir, Kavir Desert.

Great Salt Desert (noun)	Dasht-e-Kavir (noun)
a salt desert in north central Iran	a salt desert in north central Iran