grassland vs parcel

grassland and parcel both are nouns.

Word	Noun	Adjective	Verb	Adverb
grassland	Yes	No	No	No
parcel	Yes	No	Yes	No

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

grassland: land where grass or grasslike vegetation grows and is the dominant form of plant life
parcel: an extended area of land

Other hypernyms of grassland include biome, parcel of land, piece of ground, piece of land, tract.

grassland (noun)	parcel (noun)
land where grass or grasslike vegetation grows and is the dominant form of plant life	the allotment of some amount by dividing something
	a wrapped container
	a collection of things wrapped or boxed together
	an extended area of land

grassland (verb)	parcel (verb)
	make into a wrapped container
	cover with strips of canvas
	divide into parts