handicap vs interference

handicap

verb
  • To place at disadvantage. 

  • To estimate betting odds. 

  • To encumber with a handicap in any contest. 

noun
  • Something that prevents, hampers, or hinders. 

  • An allowance of a certain amount of time or distance in starting, granted in a race (or other contest of skill) to the competitor possessing disadvantages; or an additional weight or other hindrance imposed upon the one possessing advantages, in order to equalize, as much as possible, the chances of success. 

  • The disadvantage itself, in particular physical or mental disadvantages of people. 

  • A race or similar contest in which there is an allowance of time, distance, weight, or other advantage, to equalize the chances of the competitors. 

interference

verb
  • To interfere. 

noun
  • The act of interfering with something, or something that interferes. 

  • The illegal obstruction of an opponent in some ball games. 

  • An effect caused by the superposition of two systems of waves. 

  • In United States patent law, an inter partes proceeding to determine the priority issues of multiple patent applications; a priority contest. 

  • The interruption of the line between an attacked piece and its defender by sacrificially interposing a piece. 

  • The situation where a person who knows two languages inappropriately transfers lexical items or structures from one to the other. 

  • A distortion on a broadcast signal due to atmospheric or other effects. 

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