DictionaryAI

blackboard

BLAK-bord/ˈblækbɔɹd/UKBLAK-bawd/ˈblækbɔːd/

Pluralblackboards

Verbblackboards, blackboarding, blackboarded

2 meanings of blackboard

Practice

  1. 1
    nouncountable
    A large, smooth surface, usually made of dark slate, that can be written on with chalk and then wiped clean.

    Rows of equations covered the blackboard by the end of the lecture.

    Several old blackboards still hung in the abandoned schoolhouse.

    Similarchalkboard

  2. 2
    verbtransitive
    To use a blackboard as an aid in an informal discussion, sketching out ideas as they come up.

    The team likes to blackboard new concepts before committing to a design.

    She blackboarded the rough outline so the group could react to it.

    Similarsketch, brainstorm

Practice

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Origin

A compound of "black" and "board," so named because such surfaces were once typically made of black slate.