DictionaryAI

blackboard

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

Pluralblackboards

Verbblackboards, blackboarding, blackboarded

2 meanings of blackboard

Practice

  1. 1
    nouncountable
    A dark, smooth board for writing on with chalk that can be wiped clean again.

    Like a big page the whole class can see, which you can wipe clean and use again.

    The teacher wrote three new words on the blackboard.

    He cleaned the blackboard with a damp cloth before class.

    Similarchalkboard

  2. 2
    verbtransitive
    To use a board you write on with chalk to help explain ideas during a casual talk.

    Let's blackboard this problem so everyone can follow the steps.

    They blackboarded a few ideas while planning the trip.

    Similarsketch, brainstorm

Practice

Can you tell the meanings of blackboard apart? Answer 4 quick questions from this page, or write your own sentence and AI will check it.

Origin

From "black" plus "board," because these surfaces were once usually made of black slate.