blackboard

Plural: blackboards

Noun

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

Verb

To use a blackboard to assist in an informal discussion.

Origin / Etymology

From black + board, because such surfaces were once typically made of black slate.

Synonyms

chalkboard

Scrabble Score: 21

blackboard: valid Scrabble (US) TWL word
blackboard: valid Scrabble Word in Merriam-Webster MW Dictionary
blackboard: valid Scrabble Word in International Collins CSW Dictionary

Words With Friends Score: 25

blackboard is a valid Words With Friends word