desert vs tract

desert and tract both are nouns.

Word	Noun	Adjective	Verb	Adverb
desert	Yes	No	Yes	No
tract	Yes	No	No	No

As nouns, tract is a hypernym of desert; that is, tract is a word with a broader meaning than desert:

Other hypernyms of desert include biome, parcel, parcel of land, piece of ground, piece of land.

desert (noun)	tract (noun)
arid land with little or no vegetation	a bundle of myelinated nerve fibers following a path through the brain
(usually plural) a person's deservingness of or entitlement to reward or punishment	a system of body parts that together serve some particular purpose
	a brief treatise on a subject of interest; published in the form of a booklet
	an extended area of land

desert (verb)	tract (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