currant vs currant bush

currant and currant bush both are nouns.

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

As nouns, currant and currant bush are synonyms defined as:

currant and currant bush: any of various deciduous shrubs of the genus Ribes bearing currants

currant (noun)	currant bush (noun)
any of several tart red or black berries used primarily for jellies and jams	any of various deciduous shrubs of the genus Ribes bearing currants
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