pasture land vs commons

pasture land and commons both are nouns.

Word	Noun	Adjective	Verb	Adverb
pasture land	Yes	No	No	No
commons	Yes	No	No	No

As nouns, commons is a hyponym of pasture land; that is, commons is a word with a more specific, narrower meaning than pasture land:

pasture land: a field covered with grass or herbage and suitable for grazing by livestock
commons: a pasture subject to common use

Other hyponyms of pasture land include common land, cow pasture.

pasture land (noun)	commons (noun)
a field covered with grass or herbage and suitable for grazing by livestock	a class composed of persons lacking clerical or noble rank
	a piece of open land for recreational use in an urban area
	a pasture subject to common use