con vs tell truth

con

verb
  • To trick or defraud, usually for personal gain. 

  • To study or examine carefully, especially in order to gain knowledge of; to learn, or learn by heart. 

noun
  • The conversion of part of a building. 

  • A fraud; something carried out with the intention of deceiving, usually for personal, often illegal, gain. 

  • An organized gathering, such as a convention, conference, or congress. 

  • A convicted criminal, a convict. 

  • A disadvantage of something, especially when contrasted with its advantages (pros). 

  • A political conservative. 

tell truth

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