collaborate

Meanings

1. 1
   verb

   To work together with others to achieve a shared goal.

   The two companies collaborated on the new software.

2. 2
   verb

   To cooperate with an enemy that is occupying your country.

   He was accused of collaborating with the occupying forces.

Back-formation from collaborator, from French collaborateur, or else modeled on French collaborer or directly from Late Latin collabōrātus, past participle of collabōrāre. Displaced native Old English efnwyrċan.

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