allegation vs indictment

allegation

noun
  • An assertion, especially an accusation, not necessarily based on facts. 

  • The act of alleging. 

indictment

noun
  • An accusation of wrongdoing; a criticism or condemnation. 

  • The official legal document outlining the charges concerned; bill of indictment. 

  • Evidence of failure or poor performance. 

  • An official formal accusation for a criminal offence, or the process by which it is brought to a jury. 

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