1
                    as in to realize
                                                
              
          
                                                      to come to an awareness of                                       
              
                             she caught on to the fact that they were planning a surprise party                         
                
                                                                                                                                                                                                                    
        Synonyms & Similar Words
Relevance
                
                
                
              Antonyms & Near Antonyms
2
                    as in to know
                                                
              
          
                                                      to have a clear idea of                                       
              
                             he finally caught on to the concept of phototaxis                         
                
                                                                                                                                                                                                                                                              
        Synonyms & Similar Words
Antonyms & Near Antonyms
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  Merriam-Webster unabridged




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