callus vs zap

callus

verb
  • To form such hardened tissue. 

noun
  • A shining area on the frons of many species of Tabanomorpha (horse flies and relatives). 

  • The material of repair in fractures of bone; a substance exuded at the site of fracture, which is at first soft or cartilaginous in consistency, but is ultimately converted into true bone and unites the fragments into a single piece. 

  • The new formation over the end of a cutting, before it puts out rootlets. 

  • A hardened area of the skin (especially on the foot or hand) caused by repeated friction, wear or use. 

zap

verb
  • To photocopy. 

  • To damage (especially electronics) with electrostatic discharge. 

  • To use a remote control to repeatedly change channels on a television. 

  • To further energize or charge (magnetic material). 

  • To make a zap sound. 

  • To strike (something or someone) with electricity or energy, as by shooting. 

  • To heat (something) in a microwave oven. 

  • To delete or discard (electronic media). 

  • To kill; to eliminate. 

noun
  • An electric shock. 

  • A sound made by a sudden release of electricity or some similar energy. 

  • The act of heating something in a microwave oven. 

  • A raucous public demonstration designed to embarrass a public figure or celebrity as a form of political activism. 

intj
  • Representing the sound or action of a zap. 

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