1. 
   blackboard
   [n] - sheet of slate
   Found op http://www.webdictionary.co.uk/definition.php?query=blackboard
   
   
2. 
   Blackboard
   The software used in the University to create and administer virtual learning environments (VLE's).
   Found op http://www.dundee.ac.uk/learning/advancedentry/glossary.htm
   
   
3. 
   Blackboard
   Blackboard is a tool for online learning. It is the name of the leading provider of Internet infrastructure software for e-Education.
   Found op http://www.encyclo.co.uk/visitor-contributions.php
   
   
4. 
   Blackboard
   Black'board` (-bōrd`) noun 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.
   Found op http://www.encyclo.co.uk/webster/B/60
   
   
5. 
   blackboard
   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. ... Source: Websters Dictionary ... (01 Mar 1998) ...
   Found op http://www.mondofacto.com/facts/dictionary?blackboard
   
   
6. 
   blackboard
   chalkboard noun sheet of slate; for writing with chalk
   Found op http://wordnetweb.princeton.edu/perl/webwn?s=blackboard
   
   
7. 
   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.
   Found op http://thinkexist.com/dictionary/meaning/blackboard/
   
   
8. 
   Blackboard
   [disambiguation] A chalkboard is a reusable writing surface. Blackboard may also refer to: == See also == ...
   Found op http://en.wikipedia.org/wiki/Blackboard_(disambiguation)
   
   
9. 
   blackboard
   1) Chalkboard 2) Flat solid 3) Sheet 4) Sheet of slate
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/blackboard/1
   
   

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