Noun

• S: (n) blackberry (large sweet black or very dark purple edible aggregate fruit of any of various bushes of the genus Rubus)
• S: (n) blackberry, blackberry bush (bramble with sweet edible black or dark purple berries that usually do not separate from the receptacle)

Verb

• S: (v) blackberry (pick or gather blackberries) "The children went blackberrying"