From Longman Dictionary of Contemporary Englishsloesloe /sləʊ $ sloʊ/ noun [countable] DFHBPa small bitter fruit like a plum
Examples from the Corpus
sloe• Apple wine too can have a blush of colour, add some blackberries, sloes or elderberries.• Everything was here, dogwood, holly, cherry, buckthorn, sloe and even strawberry.• The garden was terminated by an immaculate row of sloe trees.Origin sloe Old English slah 