casualty vs risk

casualty

noun
  • Someone or something adversely affected by a decision, event or situation. 

  • Something that happens by chance, especially an unfortunate event; an accident, a disaster. 

  • An incidental charge or payment. 

  • A person in military service who becomes unavailable for duty, for any reason (notably death, injury, illness, capture, or desertion). 

  • The accident and emergency department of a hospital providing immediate treatment; a casualty department or emergency room. 

  • A person suffering from injuries or who has been killed due to an accident or through an act of violence. 

  • Specifically, a person who has been killed (not only injured) due to an accident or through an act of violence; a fatality. 

risk

noun
  • 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). 

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

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 casualty and risk occurred in a corpus of books? (source: Google Ngram Viewer )