outfield vs tract

outfield and tract both are nouns.

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

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

outfield: the area of a baseball playing field beyond the lines connecting the bases
tract: an extended area of land

Other hypernyms of outfield include parcel, parcel of land, piece of ground, piece of land.

outfield (noun)	tract (noun)
the area of a baseball playing field beyond the lines connecting the bases	a bundle of myelinated nerve fibers following a path through the brain
	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