wine-maker's yeast vs yeast

wine-maker's yeast and yeast both are nouns.

Word	Noun	Adjective	Verb	Adverb
wine-maker's yeast	Yes	No	No	No
yeast	Yes	No	No	No

As nouns, yeast is a hypernym of wine-maker's yeast; that is, yeast is a word with a broader meaning than wine-maker's yeast:

wine-maker's yeast: used in making wine
yeast: any of various single-celled fungi that reproduce asexually by budding or division

wine-maker's yeast (noun)	yeast (noun)
used in making wine	any of various single-celled fungi that reproduce asexually by budding or division
	a commercial leavening agent containing yeast cells; used to raise the dough in making bread and for fermenting beer or whiskey