collaborate

Meanings

1. 1
   verb

   to work together on a common enterprise of project

   We are collaborating on the new venture.

2. 2
   verb

   to cooperate as a traitor

   Many local officials collaborated with the Nazis when they occupied Paris.

3. 3
   verb

   To work together with others to achieve a common goal.

   Let's collaborate on this project, and get it finished faster.

4. 4
   verb

   To voluntarily cooperate treasonably, as with an enemy occupation force in one's country.

   If you collaborate with the occupying forces, you will be shot.

Etymology

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.