deviation vs diversion

deviation

noun
  • A detour in a road or railway. 

  • A detour to one side of the originally-planned flightpath (for instance, to avoid weather); the act of making such a detour. 

  • The act of deviating; wandering off the correct or true path or road. 

  • The voluntary and unnecessary departure of a ship from, or delay in, the regular and usual course of the specific voyage insured, thus releasing the underwriters from their responsibility. 

  • The shortest distance between the center of the target and the point where a projectile hits or bursts. 

  • A departure from the correct way of acting. 

  • For interval variables and ratio variables, a measure of difference between the observed value and the mean. 

  • The signed difference between a value and its reference value. 

  • The state or result of having deviated; a transgression; an act of sin; an error; an offense. 

diversion

noun
  • A detour, such as during road construction. 

  • A hobby; an activity that distracts the mind. 

  • Officially halting or suspending a formal criminal or juvenile justice proceeding and referral of the accused person to a treatment or care program. 

  • The act of diverting. 

  • Removal of water via a canal. 

  • The rerouting of cargo or passengers to a new transshipment point or destination, or to a different mode of transportation before arrival at the ultimate destination. 

  • A tactic used to draw attention away from the real threat or action. 

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