con vs pro

con

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

  • 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 political conservative. 

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. 

pro

noun
  • An advantage of something, especially when contrasted with its disadvantages (cons). 

  • Professional. 

  • A prostitute. 

  • A professional sportsman. 

  • A chemical prophylaxis taken after sex to avoid contracting venereal disease. 

  • A person who supports a concept or principle. 

adj
  • Professional. 

prep
  • In favor of. 

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