- a self-propelled, cigar-shaped missile containing explosives and often equipped with a homing device, launched from a submarine or other warship, for destroying surface vessels or other submarines.
- any of various submarine explosive devices for destroying hostile ships, as a mine.
- a cartridge of gunpowder, dynamite, or the like, exploded in an oil well to facilitate the extraction of oil from the well.
- a detonating device fastened to the top of a rail so as to be exploded by the pressure of a locomotive or car, thus giving an audible signal to members of a train crew.
- any of various other explosive devices, as a firework that consists of an explosive wrapped up with gravel in a piece of tissue paper and that detonates when thrown forcibly on the ground or against a hard surface.
- an electric ray, especially Torpedo nobiliana, of the Atlantic Ocean.
- an electric catfish, Malapterurus electricus, inhabiting waters of tropical central Africa and the Nile valley.
- a hero sandwich.
- a gangster hired as a murderer.
- to attack, hit, damage, or destroy with torpedoes.
- to explode a torpedo in (an oil well) to facilitate the extraction of oil.
- to undermine, ruin, or destroy: He torpedoed our plans.
- to attack, damage, or sink a ship with torpedoes.
- a cylindrical self-propelled weapon carrying explosives that is launched from aircraft, ships, or submarines and follows an underwater path to hit its target
- a submarine mine
- a firework containing gravel and a percussion cap that explodes when dashed against a hard surface
- a detonator placed on a railway line as a danger signal
- any of various electric rays of the genus Torpedo
- to hit (a ship, etc) with one or a number of torpedoes
- to render ineffective; destroy or wreck
