A large flat surface, finished with black slate or a similar material, that can be written upon with chalk and subsequently erased; a chalkboard.

To use a blackboard to assist in an informal discussion.

A person who forges iron. / (informal) A person who shoes horses. / A blackish fish of the Pacific coast (Chromis punctipinnis).

(intransitive) To work as a blacksmith.

A fruit-bearing shrub of the aggregate species Rubus fruticosus and some hybrids. / The soft fruit borne by this shrub, formed of a black (when ripe) cluster of drupelets.

To gather or forage for blackberries.

A temporary loss of consciousness. / A temporary loss of memory. / An instance of censorship, especially a temporary one. / A large-scale power failure, and resulting loss of electricity to consumers.

(nonstandard) Alternative form of black out

A river in the Scottish Borders council area, Scotland, United Kingdom / A surname, from the river and the adjacent Blackadder House.

The lowest servant in a household charged with pots, pans, and other kitchen equipment.