blade vs harpoon

blade

noun
  • The part of the tongue just behind the tip, used to make laminal consonants. 

  • A throw characterized by a tight parabolic trajectory due to a steep lateral attitude. 

  • The thin, flat part of a plant leaf, attached to a stem (petiole). The lamina. 

  • A homosexual, usually male. 

  • An artificial foot used by amputee athletes, shaped like an upside-down interrogation mark. 

  • The narrow leaf of a grass or cereal. 

  • One of a series of small plates that make up the aperture or the shutter of a camera. 

  • The four large shell plates on the sides, and the five large ones of the middle, of the carapace of the sea turtle, which yield the best tortoise shell. 

  • A piece of prepared, sharp-edged stone, often flint, at least twice as long as it is wide; a long flake of ground-edge stone or knapped vitreous stone. 

  • A cut of beef from near the shoulder blade (part of the chuck). 

  • The rudder, daggerboard, or centerboard of a vessel. 

  • A bulldozer or surface-grading machine with mechanically adjustable blade that is nominally perpendicular to the forward motion of the vehicle. 

  • The (typically sharp-edged) part of a knife, sword, razor, or other tool with which it cuts. 

  • The flat functional end or piece of a propeller, oar, hockey stick, chisel, screwdriver, skate, etc. 

  • Thin plate, foil. 

  • The principal rafters of a roof. 

  • A blade server. 

  • An exterior product of vectors. (The product may have more than two factors. Also, a scalar counts as a 0-blade, a vector as a 1-blade; an exterior product of k vectors may be called a k-blade.) 

  • A flat bone, especially the shoulder blade. 

  • Synonym of knifeblade 

  • The part of a key that is inserted into the lock. 

  • A sword or knife. 

verb
  • To stab with a blade 

  • To cut (a person) so as to provoke bleeding. 

  • To furnish with a blade. 

  • To put forth or have a blade. 

  • To skate on rollerblades. 

harpoon

noun
  • A harmonica. 

  • A spearlike weapon with a barbed head used in hunting whales and large fish. 

verb
  • To shoot something with a harpoon. 

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