noun. 
                    In railroading, an empty car; an empty.
                  
                
                  
                    noun. 
                    One who idles; one who spends his time in inaction, or without occupation or employment; a lounging or lazy person; a sluggard.
                  
                
                  
                    noun. 
                    Nautical, a member of a ship's crew who is not required to keep night-watch.
                  
                
                  
                    noun. 
                    On board a whaler, one who is not required to assist in the capture of whales.
                  
                
                  
                    noun. 
                    In machinery, an idle-wheel.