submersible vs torpedo

submersible

noun
  • A very small "baby" submarine designed for specific localized missions, usually while tethered to a submarine or ship for life support and communications. Slang synonyms: midget-submarine, anchor. 

  • A small nonmilitary, non-nuclear submarine for exploration. 

  • A term used primarily by some navies for nuclear submarines, termed "true submersibles", because they cannot retroactively declare that their non-nuclear submarines should be called by a different name. 

  • A retroactive term used for non-nuclear submarines; nuclear submarines are termed "true submarines". 

adj
  • Able to be submerged. 

torpedo

noun
  • A submarine sandwich. 

  • A similar projectile that can travel through space. 

  • A professional gunman or assassin. 

  • An electric ray of the genus Torpedo. 

  • A kind of firework in the form of a small ball, or pellet, which explodes when thrown upon a hard object. 

  • A small explosive device attached to the top of the rail to provide an audible warning when a train passes over it. 

  • A thick marijuana cigarette. 

  • A cigarette containing marijuana and crack cocaine. 

  • An automobile with a streamlined profile and a folding or detachable soft top, and having the hood or bonnet line raised to be level with the car's waistline, resulting in a straight beltline from front to back. 

  • A woman's shoe with a pointed toe. 

  • A cylindrical explosive projectile that can travel underwater and is used as a weapon. 

  • A large breast; a breast with a large nipple. 

verb
  • To sink (a ship) with one or more torpedoes. 

  • To strike (a ship) with one or more torpedoes. 

  • To undermine or destroy any endeavor with a stealthy, powerful attack. 

How often have the words submersible and torpedo occurred in a corpus of books? (source: Google Ngram Viewer )