"blackberries" in the noun sense
1. blackberry
large sweet black or very dark purple edible aggregate fruit of any of various bushes of the genus Rubus
2. blackberry, blackberry bush
bramble with sweet edible black or dark purple berries that usually do not separate from the receptacle
"blackberries" in the verb sense
1. blackberry
pick or gather blackberries
"The children went blackberrying"
Source: WordNet® (An amazing lexical database of English)
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