annotate
verb
                                                                                                                            
                                                            an·no·tate
                    
                                                                                                              
                                                                                                                                  ˈa-nə-ˌtāt 
                                                      
                                                          
            
            
              annotated; annotating            
        
    
                                
              
          
                                                      : to make or furnish critical or explanatory notes or comment                                      
                
                    
                                
              
          
                                                      : to make or furnish annotations (see annotation sense 1) for (something, such as a literary work or subject)                                      
              
                             
annotated his translation of Dante's Divine Comedy
                         
                
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  Merriam-Webster unabridged




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