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blackboard

[blak-bawrd, -bohrd] /ˈblækˌbɔrd, -ˌboʊrd/
noun
1.
a sheet of smooth, hard material, especially dark slate, used in schools, lecture rooms, etc., for writing or drawing on with chalk.
Also called chalkboard.
Compare greenboard.
Origin of blackboard
1815-1825
First recorded in 1815-25; black + board

Blackboard Learn

[blak-bawrd lurn, ‐bohrd] /ˈblækˌbɔrd ˌlɜrn, ‐boʊrd/
Trademark.
1.
the brand name of a learning management system, launched in 1998.
Abbreviation: Bb.
Also called Blackboard.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for blackboard
Contemporary Examples
Historical Examples
  • Ellis Holbrook stood but a step from the blackboard, just behind him.

  • For a slate or blackboard, he used the beach, as did Archimedes of the olden time.

    Adrift on the Pacific Edward S. Ellis
  • One day the teacher had ruled the blackboard with very fine lines.

  • This was the writing of words on the blackboard for the pupils to use 118 in sentences.

    David Dunne

    Belle Kanaris Maniates
  • Crayon will not write on the smooth, glazed parts of a blackboard.

    Common Science Carleton W. Washburne
British Dictionary definitions for blackboard

blackboard

/ˈblækˌbɔːd/
noun
1.
a hard or rigid surface made of a smooth usually dark substance, used for writing or drawing on with chalk, esp in teaching
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for blackboard
n.

1823, from black + board (n.1). Blackboard jungle "inner-city school rife with juvenile delinquency" is from Evan Hunter's novel title (1954).

Online Etymology Dictionary, © 2010 Douglas Harper
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Word Value for blackboard

21
25
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