center field vs parcel of land

center field and parcel of land both are nouns.

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

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

center field: the piece of ground in the outfield directly ahead of the catcher
parcel of land: an extended area of land

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

center field (noun)	parcel of land (noun)
the fielding position of the player on a baseball team who is expected to field balls in the central third of the outfield	an extended area of land
the piece of ground in the outfield directly ahead of the catcher