Definition of blackboard Blackboard
/blæˈkbɔˌɹd/ - [blakbord] - black•board
We found 7 definitions of blackboard from 6 different sources.
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What does blackboard mean?
WordNet
NounPlural: blackboards |
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| blackboard - sheet of slate; for writing with chalk | ||
| chalkboard | ||
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Wiktionary 
- blackboard (Noun)
A large flat surface, finished with black slate or a similar material, that can be written upon with chalk and subsequently erased; a chalkboard. - blackboard (Verb)
To use a blackboard to assist in an informal discussion.
Webster DictionaryWebster's Unabridged Dictionary 📘
- blackboard (n.)
A broad board painted black, or any black surface on which writing, drawing, or the working of mathematical problems can be done with chalk or crayons. It is much used in schools.
OmegaWiki DictionaryOmegaWiki Dictionary Ω
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blackboard
A dark-coloured board for writing on in chalk used especially in schools.
Wikipedia 
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A blackboard, also called a chalkboard, is a surface on which markings made with chalk are visible. It is used as a surface to write on.
Blackboards are often used to help teach in school. Blackboards are not used as much now. People use whiteboards instead. Whiteboards are used because some people are allergic to the dust the chalk used to write on chalkboards generate, and because the dust is hard to clean up when spilled.
Chalkboards are written on with chalk, which is actually not the stone chalk at all. It is actually made by factories. Schoolteachers often use the chalkboard to display things at large. Chalkboards can be black or dark green, also called blackboards and greenboards.
Part of speech
🔤- blackboard, noun, singular of blackboards.
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