tract vs system

tract and system both are nouns.

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

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

tract (noun)	system (noun)
a bundle of myelinated nerve fibers following a path through the brain	instrumentality that combines interrelated interacting artifacts designed to work as a coherent entity
a system of body parts that together serve some particular purpose	an ordered manner; orderliness by virtue of being methodical and well organized
a brief treatise on a subject of interest; published in the form of a booklet	a group of physiologically or anatomically related organs or parts
an extended area of land	the living body considered as made up of interdependent components forming a unified whole
	a complex of methods or rules governing behavior
	a procedure or process for obtaining an objective
	an organized structure for arranging or classifying
	a group of independent but interrelated elements comprising a unified whole
	(physical chemistry) a sample of matter in which substances in different phases are in equilibrium