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); different names are used in different sections of the United States | 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 |
| armament consisting of a long cylindrical self-propelled underwater projectile that detonates on contact with a target |
| a small explosive device that is placed on a railroad track and fires when a train runs over it; the sound of the explosion warns the engineer of danger ahead |
| a small firework that consists of a percussion cap and some gravel wrapped in paper; explodes when thrown forcefully against a hard surface |
| 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) |
| 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); different names are used in different sections of the United States |
| a professional killer who uses a gun |