Definition of "blackberry" in English

noun

1. A fruit-bearing shrub of the aggregate species Rubus fruticosus and some hybrids.

2. The soft fruit borne by this shrub, formed of a black (when ripe) cluster of drupelets.

3. (loosely, informal) Any Rubus berry that is black or blackish; the plant that produces it.

4. (UK, dialectal) The blackcurrant.

verb

1. To gather or forage for blackberries.