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verb (used without object), col·lab·o·rat·ed, col·lab·o·rat·ing.
  1. to work, one with another; cooperate, as on a literary work: They collaborated on a novel.
  2. to cooperate, usually willingly, with an enemy nation, especially with an enemy occupying one's country: He collaborated with the Nazis during World War II.
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Origin of collaborate

1870–75; < Late Latin collabōrātus (past participle of collabōrāre), equivalent to col- col-1 + labor work + -ātus -ate1
Related formscol·lab·o·ra·tor, noun
Can be confusedcollaborate corroborate

Synonyms for collaborate

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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for collaborated

collude, participate, conspire, cooperate, concur, concert, coact, cofunction, coproduce, interface

Examples from the Web for collaborated

Contemporary Examples of collaborated

Historical Examples of collaborated

British Dictionary definitions for collaborated


verb (intr)
  1. (often foll by on, with, etc) to work with another or others on a joint project
  2. to cooperate as a traitor, esp with an enemy occupying one's own country
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Derived Formscollaborative, adjectivecollaborator, noun

Word Origin for collaborate

C19: from Late Latin collabōrāre, from Latin com- together + labōrāre to work
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for collaborated



1871, back-formation from collaborator. Given a bad sense in World War II. Related: Collaborated; collaborating.

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Online Etymology Dictionary, © 2010 Douglas Harper