Blackboard Definition

blăkbôrd
blackboards
noun
blackboards
A smooth, hard, dark-colored panel for writing on with chalk.
American Heritage
A large, smooth, usually dark surface of slate or other material on which to write or draw with chalk; chalkboard.
Webster's New World

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

Wiktionary
Synonyms:
verb
To use a blackboard to assist in an informal discussion.
Wiktionary

Other Word Forms of Blackboard

Noun

Singular:
blackboard
Plural:
blackboards

Origin of Blackboard

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

    From Wiktionary

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