assurance vs threat

assurance

noun
  • The act of assuring; a declaration tending to inspire full confidence; something designed to give confidence. 

  • Subjective certainty of one's salvation. 

  • Firmness of mind; undoubting steadiness; intrepidity; courage; confidence; self-reliance. 

  • Insurance; a contract for the payment of a sum on occasion of a certain event, as loss or death. Assurance is used in relation to life contingencies, and insurance in relation to other contingencies. It is called temporary assurance, in the time within which the contingent event must happen is limited. 

  • The state of being assured; total confidence or trust; a lack of doubt; certainty. 

  • Excessive boldness; impudence; audacity 

  • Any written or other legal evidence of the conveyance of property; a conveyance; a deed. 

threat

noun
  • An expression of intent to injure or punish another. 

  • A person or object that is regarded as a danger; a menace. 

  • An indication of potential or imminent danger. 

verb
  • To press; urge; compel. 

  • To use threats; act or speak menacingly; threaten. 

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