: a man who operates levers or controls: such as                                      
                
                    
           
           
      
              
        a
    
                                          
              
          
                                                      : towerman                                      
              
                             a leverman on duty in the switch tower nearby was suspended soon after the accident— New York Times
New York Times                          
                
                     
            
      
      
              
        c
    
                                          
              
          
                                                      : a sawmill worker who controls the mechanism that transfers lumber from one set of conveyor rolls to another or from rolls to platform                                      
                      called also
        rollerman  
    
                
                     
            
      
              
        d
    
                                          
              
          
                                                      : an operator of a donkey engine for moving logs                                      
                
                    
            
      
              
        e
    
                                          
              
          
                                                      : a member of a forging crew who handles billets during forging                                      
                
                    
            
   
                   
             
                    
                        
        
        
        
                
                
                
        
                
     
    
                                                    
                                                                                        
            
                                    
                        
                                                    
                                
                       
                                        
                
                                                
                            
            
                                    
                                    
                        
                                            
                                                    
                                                                
                                
                
                
                
                
                
                
                
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
                                        
                                                    
                            
                                                               
                                                
  
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  Merriam-Webster unabridged
 
                          
                    
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