repetition vs tune-up

repetition

noun
  • The act of performing a single, controlled exercise motion. A group of repetitions is a set. 

  • The act or an instance of repeating or being repeated. 

verb
  • To petition again. 

tune-up

noun
  • A series of preparations for vigorous exercise; a warm-up 

  • A series of adjustments to an engine in order to improve its performance 

  • A match or race (frequently one exhibition in nature) contested as preparation for a match or race of high stakes. 

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