caution vs risk

caution

noun
  • A careful attention to the probable effects of an act, in order that failure or harm may be avoided. 

  • A formal warning given as an alternative to prosecution in minor cases. 

  • Security; guaranty; bail. 

  • A yellow card. 

  • Prudence when faced with, or when expecting to face, danger; care taken in order to avoid risk or harm. 

verb
  • To warn; to alert, advise that caution is warranted. 

  • To give a yellow card 

risk

noun
  • A thing (from the perspective of how likely or unlikely it is to cause an adverse effect). 

  • A possible adverse event or outcome. 

  • A borrower (such as a mortgage-holder or person with a credit card). 

  • An entity insured by an insurer. 

  • The potential negative effect of an event, determined by multiplying the likelihood of the event occurring with its magnitude should it occur. 

  • The magnitude of possible loss consequent to a decision or event. 

  • The probability of a negative outcome to a decision or event. 

  • A type of adverse event covered under an insurance policy. 

  • A financial product (typically an investment). 

verb
  • To incur risk as a result of (doing something). 

  • To incur risk of harming or jeopardizing. 

  • To incur risk of (something). 

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