caution vs injunction

caution

noun
  • Security; guaranty; bail. 

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

  • A yellow card. 

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

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

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

  • To give a yellow card 

injunction

noun
  • The act of enjoining; the act of directing, commanding, or prohibiting. 

  • A writ or process, granted by a court of equity, and, in some cases, under statutes, by a court of law, whereby a party is required to do or to refrain from doing certain acts, according to the exigency of the writ. 

  • That which is enjoined; such as an order, mandate, decree, command, precept. 

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