fairground vs tract

fairground and tract both are nouns.

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

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

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

fairground (noun)	tract (noun)
an open area for holding fairs or exhibitions or circuses	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