col·​lab·​o·​ra·​tion·​ism | \ kə-ˌla-bə-ˈrā-shə-ˌni-zəm How to pronounce collaborationism (audio) \

Definition of collaborationism

: the advocacy or practice of collaboration with an enemy

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Other Words from collaborationism

collaborationist \ kə-​ˌla-​bə-​ˈrā-​sh(ə-​)nist How to pronounce collaborationist (audio) \ adjective or noun

Examples of collaborationism in a Sentence

Recent Examples on the Web

The message that united two-thirds of French voters behind Macron was to oppose the National Front, a narrative so powerful that the sitting French ambassador to Washington got on the radio to compare a Le Pen victory to Vichy-era collaborationism. Matt Peterson, The Atlantic, "Where Do Populists Go When They Lose?," 13 May 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'collaborationism.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of collaborationism

1923, in the meaning defined above

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Time Traveler for collaborationism

The first known use of collaborationism was in 1923

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Comments on collaborationism

What made you want to look up collaborationism? Please tell us where you read or heard it (including the quote, if possible).


ancient or antiquated

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