tract vs piece of ground

tract and piece of ground both are nouns.

Word	Noun	Adjective	Verb	Adverb
tract	Yes	No	No	No
piece of ground	Yes	No	No	No

As nouns, tract and piece of ground are synonyms defined as:

Other synonyms of tract include parcel, parcel of land, piece of land.

tract (noun)	piece of ground (noun)
a bundle of myelinated nerve fibers following a path through the brain	an extended area of land
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