halter vs tightrope walker

halter

noun
  • A halter top. 

  • A bitless headpiece of rope or straps, placed on the head of animals such as cattle or horses to lead or tie them. 

  • One who halts or limps; a cripple. 

  • A rope with a noose, for hanging criminals; the gallows rope. 

verb
  • To place a halter on. 

tightrope walker

noun
  • An acrobat who practices tightrope walking. 

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