red currant vs currant

red currant and currant both are nouns.

Word	Noun	Adjective	Verb	Adverb
red currant	Yes	No	No	No
currant	Yes	No	No	No

As nouns, currant is a hypernym of red currant; that is, currant is a word with a broader meaning than red currant:

red currant: small red berries used primarily in jams and jellies
currant: any of several tart red or black berries used primarily for jellies and jams

As nouns, currant is a hypernym of red currant; that is, currant is a word with a broader meaning than red currant:

red currant: cultivated European current bearing small edible red berries
currant: any of various deciduous shrubs of the genus Ribes bearing currants

Other hypernyms of red currant include currant bush.

red currant (noun)	currant (noun)
small red berries used primarily in jams and jellies	any of several tart red or black berries used primarily for jellies and jams
cultivated European current bearing small edible red berries	small dried seedless raisin grown in the Mediterranean region and California; used in cooking
	any of various deciduous shrubs of the genus Ribes bearing currants