- 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[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.
NAmE//kəˈlæbəˌreɪt//Verb Forms present simple I / you / we / they collaborate
he / she / it collaborates
past simple collaborated
-ing form collaborating