corkboard
noun
                                                                                                                            
                                                            cork·board
                    
                                                                                                              
                                                                                                                                  ˈkȯrk-ˌbȯrd  
                                                      
                                                          
            
                                
              
          
                                                      : a heat-insulating material made of compressed granulated cork                                      
                
                                
            also                
          
                                                      : a bulletin board made with this material                                      
            
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  Merriam-Webster unabridged




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