1
                    
                                          
              
          
                                                      pascal                                      
                
                    
2
                    
                                          
              
          
                                                      Pennsylvania                                      
                
                    
                                
              
          
                                                      protactinium                                      
                
                    
            
               plural PAs            
        
    
                                
              
          
                                                      : public-address system                                      
              
                             
He perks up when the name of his town comes over the PA.— Colson Whitehead
Colson Whitehead
                                       After they'd mustered at their tables, before saying grace, a staff sergeant read the manifest over the PA.— Stewart O'Nan
Stewart O'Nan
                                       Then came the announcement over the news, over the radio and over the PAs at schools: The school board had canceled school until further notice …— Daniel Thigpen
Daniel Thigpen
                         
                
                    1
                    
                                          
              
          
                                                      Pennsylvania                                      
                
                    
2
                    
                                chiefly British 
                                  
              
          
                                                      per annum                                      
                
                    
3
                    
                                          
              
          
                                                      personal assistant                                      
                
                    
4
                    
                                          
              
          
                                                      power amplifier                                      
                
                    
5
                    
                                          
              
          
                                                      power of attorney                                      
                
                    
6
                    
                                          
              
          
                                                      press agent                                      
                
                    
7
                    
                                          
              
          
                                                      professional association                                      
                
                    
8
                    
                                          
              
          
                                                      public address                                      
              
                             
… retail store services featuring … public address (PA) systems …— US Fed News
US Fed News
                         
                
                    9
                    
                                          
              
          
                                                      purchasing agent                                      
                
                    
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  Merriam-Webster unabridged




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