collaboration vs synergy

collaboration

noun
  • A production or creation made by collaborating. 

  • Treasonous cooperation. 

  • The act of collaborating. 

synergy

noun
  • Benefits resulting from combining different groups, people, objects or processes. 

  • The cooperation of two or more nerves, muscles, organs, etc. 

  • A synonym of binding energy. 

  • The combined action of two or more drugs where the effects are stronger than their mere sum. 

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