mast vs monolith

mast

noun
  • 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 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). 

  • 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. 

monolith

noun
  • A dead tree whose height and size have been reduced by breaking off or cutting its branches. 

  • A large, single block of stone which is a natural feature; or a block of stone or other similar material used in architecture and sculpture, especially one carved into a monument in ancient times. 

  • A substrate having many tiny channels that is cast as a single piece, which is used as a stationary phase for chromatography, as a catalytic surface, etc. 

  • Anything massive, uniform, and unmovable, especially a towering and impersonal cultural, political, or social organization or structure. 

verb
  • To cast (one or more concrete components) in a single piece with no joints. 

  • To reduce the height and size of (a dead tree) by breaking off or cutting its branches. 

  • To create (something) as, or convert (one or more things) into, a monolith. 

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