1
                    
        a(1)
    
                
                                          
              
          
                                                      : a passage (as in a theater or railroad passenger car) separating sections of seats                                      
                
                    
        (2)
    
          
                                          
              
          
                                                      : such a passage regarded as separating opposing parties in a legislature                                      
              
                             
supported by members on both sides of the aisle
                         
                
                    
        b
    
          
                                          
              
          
                                                      : a passage (as in a store or warehouse) for inside traffic                                      
                
                    
2
                    
                                          
              
          
                                                      : the side of a church nave separated by piers from the nave proper                                      
                
                    
Love words? Need even more definitions?
  
  Merriam-Webster unabridged




Share