blackberry

Concise Oxford English Dictionary © 2008 Oxford University Press:
blackberry/ˈblakbəri/

▶noun (pl. blackberries)

• 1 an edible soft fruit consisting of a cluster of soft purple-black drupels.

• 2 the prickly climbing shrub of the rose family which bears blackberries. [Rubus fruticosus.]

▶verb (blackberries, blackberrying, blackberried) (usu. as noun blackberrying) gather blackberries.