gallop vs rhythm

gallop

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

  • 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. 

verb
  • 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 run very fast. 

  • To progress rapidly through the body. 

  • To run at a gallop. 

  • To cause to gallop. 

rhythm

noun
  • A person's natural feeling for rhythm. 

  • A specifically defined pattern of such variation. 

  • A regular quantitative change in a variable (notably natural) process. 

  • Controlled repetition of a phrase, incident or other element as a stylistic figure in literature and other narrative arts; the effect it creates. 

  • The variation of strong and weak elements (such as duration, accent) of sounds, notably in speech or music, over time; a beat or meter. 

  • A flow, repetition or regularity. 

  • The musical instruments which provide rhythm (mainly; not or less melody) in a musical ensemble. 

  • The tempo or speed of a beat, song or repetitive event. 

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