Blackthorn berries on the bush.
- a thorny, white-flowered prunus shrub (Prunus spinosa) with purple or black, plumlike fruit; sloe
- a cane or stick made of the stem of this shrub
- A thorny deciduous Eurasian shrub (Prunus spinosa) of the rose family, having white flowers and small bluish-black fruits.
- The fruit of this plant, used chiefly for flavoring alcoholic beverages such as sloe gin. In both senses also called sloe.