athletic field vs tract

athletic field and tract both are nouns.

Word	Noun	Adjective	Verb	Adverb
athletic field	Yes	No	No	No
tract	Yes	No	No	No

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

Other hypernyms of athletic field include parcel, parcel of land, piece of ground, piece of land.

athletic field (noun)	tract (noun)
a piece of land prepared for playing a game	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