cow pasture vs pasture

cow pasture and pasture both are nouns.

Word	Noun	Adjective	Verb	Adverb
cow pasture	Yes	No	No	No
pasture	Yes	No	Yes	No

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

cow pasture: a pasture for cows
pasture: a field covered with grass or herbage and suitable for grazing by livestock

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

cow pasture (noun)	pasture (noun)
a pasture for cows	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

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