- 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. Also called In both senses also called sloe .
- Oral preparations may include extracts of hawthorn berry, blackthorn, or licorice root, while topical preparations to relieve itching typically include licorice or German chamomile.
- A third species, the common sloe or blackthorn, P. spinosa, has stout spines; its flowers expand before the leaves; and its fruit is very rough to the taste, in which particulars it differs from the two preceding.