common land vs pasture

common land and pasture both are nouns.

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

As nouns, pasture is a hypernym of common land; that is, pasture is a word with a broader meaning than common land:

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

Other hypernyms of common land include grazing land, lea, ley, pasture land, pastureland.

common land (noun)	pasture (noun)
a pasture subject to common use	bulky food like grass or hay for browsing or grazing horses or cattle
	a field covered with grass or herbage and suitable for grazing by livestock

common land (verb)	pasture (verb)
	feed as in a meadow or pasture
	let feed in a field or pasture or meadow