blackboard

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Pronunciation[change]

Noun[change]

Singular
blackboard

Plural
blackboards

A teacher using a blackboard
A child writing on a blackboard. Some blackboards are actually green in color.
  1. A blackboard is a large, flat piece of slate, typically hung in a classroom and written on with erasable chalk.
    The teacher wrote the day's lesson on the blackboard.

See also[change]