noun
Refers to the fruit or the plant Ribes nigrum. Common in food and drink contexts.
from French cassis
カシスはビタミンCが豊富な果物です。
Blackcurrants are a fruit rich in vitamin C.
noun
cassis (liqueur)
Specifically the blackcurrant liqueur, often used in cocktails like kir.
カシスをソーダで割って飲むのが好きです。
I like to drink cassis mixed with soda.