baptism
noun
                                                                                                                            
                                                            bap·tism
                    
                                                                                                              
                                                                                                                                  ˈbap-ˌti-zəm  
                                                                                                                              
             especially Southern  ˈbab-
                                                      
                                                          1
                    
        a
    
          
                                          
              
          
                                                      : a Christian sacrament marked by ritual use of water and admitting the recipient to the Christian community                                      
                
                    
        b
    
          
                                          
              
          
                                                      : a non-Christian rite using water for ritual purification                                      
                
                    
        c
    
          
                                Christian Science 
                                  
              
          
                                                      : purification by or submergence in Spirit                                      
                
                    
2
                    
                                          
              
          
                                                      : an act, experience, or ordeal by which one is purified, sanctified, initiated, or named                                      
                
                    
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  Merriam-Webster unabridged




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