left field vs parcel of land

left field and parcel of land both are nouns.

Word	Noun	Adjective	Verb	Adverb
left field	Yes	No	No	No
parcel of land	Yes	No	No	No

As nouns, parcel of land is a hypernym of left field; that is, parcel of land is a word with a broader meaning than left field:

Other hypernyms of left field include parcel, piece of ground, piece of land, tract.

left field (noun)	parcel of land (noun)
the fielding position of the player on a baseball team who is expected to field balls in the left third of the outfield (looking from home plate)	an extended area of land
the piece of ground in the outfield on the catcher's left