Definition of collaboration noun from the Oxford Advanced American Dictionary

     

    collaboration

     noun
    noun
    NAmE//kəˌlæbəˈreɪʃn//
     
     
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  1. 1 [uncountable, countable] the act of working with another person or group of people to create or produce something It was a collaboration that produced extremely useful results. The new plane was a triumph of American industrial and technical collaboration. collaboration (with somebody) (on something) She wrote the book in collaboration with one of her students. The administration worked in close collaboration with teachers on the new curriculum. collaboration (between A and B) collaboration between the teachers and the administration
  2. 2[countable] a piece of work produced by two or more people or groups working together
  3. 3[uncountable] (disapproving) the act of helping the enemy during a war when they have taken control of your country
See the Oxford Advanced Learner's Dictionary entry: collaboration