noun
                                                a professional killer who uses a gun
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                                                noun
                                                a large sandwich made of a long crusty roll split lengthwise and filled with meats and cheese (and tomato and onion and lettuce and condiments)
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                                                                                                Examples
                                                
                                                                                                        - different names are used in different sections of the United States
 
                                                                                        
                                                noun
                                                an explosive device that is set off in an oil well (or a gas well) to start or to increase the flow of oil (or gas)
                                                
                                                                                             
                                                                                        
                                                noun
                                                a small firework that consists of a percussion cap and some gravel wrapped in paper
                                                
                                                                                                Examples
                                                
                                                                                                        - explodes when thrown forcefully against a hard surface
 
                                                                                        
                                                noun
                                                a small explosive device that is placed on a railroad track and fires when a train runs over it
                                                
                                                                                                Examples
                                                
                                                                                                        - the sound of the explosion warns the engineer of danger ahead
 
                                                                                        
                                                noun
                                                armament consisting of a long cylindrical self-propelled underwater projectile that detonates on contact with a target
                                                
                                                                                             
                                                                                        
                                                noun
                                                any sluggish bottom-dwelling ray of the order Torpediniformes having a rounded body and electric organs on each side of the head capable of emitting strong electric discharges
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                                                verb
                                                attack or hit with torpedoes