mast vs transmitter

mast

noun
  • A tall, slim post or tower, usually tapering upward, used to support, for example, sails or observation platforms on a ship, the main rotor of a helicopter, flags, floodlights, meteorological instruments, or communications equipment, such as an aerial, usually supported by guy-wires (except in the case of a helicopter). 

  • The fruit of forest-trees (beech, oak, chestnut, pecan, etc.), especially if having fallen from the tree, used as fodder for pigs and other animals. 

  • A non-judicial punishment ("NJP"); a disciplinary hearing under which a commanding officer studies and disposes of cases involving those under his command. 

  • The anabolic steroid Drostanolone propionate, also known as Masteron 

verb
  • To supply and fit a mast to (a ship). 

  • To feed on forest seed or fruit. 

  • To produce a very large quantity of fruit or seed in certain years but not others. 

transmitter

noun
  • An electronic device that generates and amplifies a carrier wave, modulates it with a meaningful signal derived from speech, music, TV or other sources, and broadcasts the resulting signal from an antenna. 

  • One who or that which transmits something (in all senses). 

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