accelerate vs fast track

accelerate

verb
  • To become faster; to begin to move more quickly. 

  • To enable a student to finish a course of study in less than normal time. 

  • Grow; increase. 

  • To quicken the natural or ordinary progression or process of. 

  • To cause to move faster; to quicken the motion of; to add to the speed of. 

  • To cause a change of velocity. 

  • To hasten, as the occurrence of an event. 

adj
  • Accelerated; quickened; hastened; hurried. 

fast track

verb
  • To progress something with unusual rapidity. 

noun
  • A racetrack with optimum conditions for high speeds 

  • A railroad for express trains. 

  • The quickest or most direct method or path. 

  • A high-pressure or intensely competitive situation, particularly one characterised by rapid advancement. 

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