Definition of collaborate verb from the Oxford Advanced American Dictionary

     

    collaborate

     verb
    verb
    NAmE//kəˈlæbəˌreɪt//
     
    Verb Forms present simple I / you / we / they collaborate
     
    he / she / it collaborates
     
    past simple collaborated
     
    -ing form collaborating
     
     
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  1. 1[intransitive] to work together with someone in order to produce or achieve something Researchers around the world are collaborating to develop a new vaccine. collaborate (with somebody) (on something) We have collaborated on many projects over the years. collaborate (with somebody) (in something/in doing something) She agreed to collaborate with him in writing her biography.
  2. 2[intransitive] collaborate (with somebody) (disapproving) to help the enemy who has taken control of your country during a war He was accused of collaborating with the enemy.
See the Oxford Advanced Learner's Dictionary entry: collaborate