fairway vs piece of ground

fairway and piece of ground both are nouns.

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

As nouns, piece of ground is a hypernym of fairway; that is, piece of ground is a word with a broader meaning than fairway:

Other hypernyms of fairway include parcel, parcel of land, piece of land, tract.

fairway (noun)	piece of ground (noun)
the area between the tee and putting green where the grass is cut short	an extended area of land
a tract of ground free of obstacles to movement
the usual course taken by vessels through a harbor or coastal waters