currant vs red currant

currant and red currant both are nouns.

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

As nouns, red currant is a hyponym of currant; that is, red currant is a word with a more specific, narrower meaning than currant:

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

Other hyponyms of currant include gooseberry, black currant, white currant.

As nouns, red currant is a hyponym of currant; that is, red currant is a word with a more specific, narrower meaning than currant:

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

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