struggle vs taxi

struggle

noun
  • A contortion of the body in an attempt to escape or to perform a difficult task. 

  • Strife, contention, great effort. 

verb
  • To strive, to labour in difficulty, to fight (for or against), to contend. 

  • To strive, or to make efforts, with a twisting, or with contortions of the body. 

taxi

noun
  • The movement of an aircraft across an airport's surface under its own power; a phase of aircraft operation involving this movement. 

  • A vehicle that may be hired for single journeys by members of the public, driven by a taxi driver. 

  • A share taxi. 

verb
  • To move an aircraft on the ground under its own power. 

  • To travel by taxicab. 

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