pamphlet vs tract

pamphlet and tract both are nouns.

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

As nouns, pamphlet and tract are synonyms defined as:

pamphlet and tract: a brief treatise on a subject of interest; published in the form of a booklet

pamphlet (noun)	tract (noun)
a brief treatise on a subject of interest; published in the form of a booklet	a bundle of myelinated nerve fibers following a path through the brain
a small book usually having a paper cover	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