Great Sandy Desert vs desert

Great Sandy Desert and desert both are nouns.

Word	Noun	Adjective	Verb	Adverb
Great Sandy Desert	Yes	No	No	No
desert	Yes	No	Yes	No

Great Sandy Desert (noun)	desert (noun)
a desert region in northwestern Australia to the north of the Gibson Desert	arid land with little or no vegetation
a desert in southern Saudi Arabia	(usually plural) a person's deservingness of or entitlement to reward or punishment

Great Sandy Desert (verb)	desert (verb)
	leave someone who needs or counts on you; leave in the lurch
	leave behind
	desert (a cause, a country or an army), often in order to join the opposing cause, country, or army