: intended to catch up to a theoretical norm or a competitor's accomplishments                                      
                
                    
                                
              
          
                                                      : the act or fact of catching up or trying to catch up (as with a norm or competitor)                                      
              
                             
had to play catch-up
                         
                
                                
            also                
          
                                                      : an increase intended to achieve catch-up                                      
            
            
            
              caught up; catching up; catches up            
        
    1
                    
                  2
                    
                                          
              
          
                                                      : to provide with the latest information                                      
              
                             
catch me up on the news
                         
                
                    1
                    
        a
    
          
                                          
              
          
                                                      : to travel fast enough to overtake an advance party                                      
              
                             
The soldier ran to catch up with his unit.
                         
                
                    
        b
    
          
                                          
              
          
                                                      : to reach a state of parity (see parity sense 1) or of being able to cope                                      
              
                             
students who miss class have difficulty catching up
                         
                
                    2
                    
                                          
              
          
                                                      : to bring about arrest for illicit activities                                      
              
                             
the police caught up with the thieves
                         
                
                    3
                    
        a
    
          
                                          
              
          
                                                      : to complete or compensate (see compensate sense 1) for something belatedly                                      
              
                             
catch up on lost sleep
                         
                
                    
        b
    
          
                                          
              
          
                                                      : to acquire belated information                                      
              
                             
catch up on the news
                         
                
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  Merriam-Webster unabridged




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