blackboard

Pronunciation

• Audio (US)

  (file)

Noun

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.
   • Synonym: chalkboard

   The teacher wrote the day's lesson on the blackboard.

See also

• whiteboard