gallop vs open up

gallop

verb
  • To run very fast. 

  • To go rapidly or carelessly, as in making a hasty examination. 

  • To ride at a galloping pace. 

  • To make electrical or other utility lines sway and/or move up and down violently, usually due to a combination of high winds and ice accrual on the lines. 

  • To progress rapidly through the body. 

  • To run at a gallop. 

  • To cause to gallop. 

noun
  • The fastest gait of a horse, a two-beat stride during which all four legs are off the ground simultaneously. 

  • An act or instance of going or running rapidly. 

  • An abnormal rhythm of the heart, made up of three or four sounds, like a horse's gallop. 

open up

verb
  • To begin running, driving, travelling, etc., at maximum speed. 

  • Synonym of cheat out (“to face or turn toward the audience more than would be natural”) 

  • To commence firing weapons. 

  • To rain. 

  • To open. 

  • To widen. 

  • To reveal oneself; to share personal information about oneself; to become communicative. 

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