battleground vs tract

battleground and tract both are nouns.

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

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

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

battleground (noun)	tract (noun)
a region where a battle is being (or has been) fought	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