collaboration vs handicap

collaboration

noun
  • Treasonous cooperation. 

  • The act of collaborating. 

  • A production or creation made by collaborating. 

handicap

verb
  • To estimate betting odds. 

  • To encumber with a handicap in any contest. 

  • To place at disadvantage. 

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. 

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