genteelism
noun
                                                                                                                            
                                                            gen·teel·ism
                    
                                                                                                              
                                                                                                                                  jen-ˈtē(l)-ˌli-zəm  
                                                      
                                                          
            
                                
              
          
                                                      : a word believed by its user to be more polite or less vulgar than a common synonym                                      
                
                                
            also                
          
                                                      : the use of genteelisms                                      
            
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  Merriam-Webster unabridged




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