col·​lu·​sion | \ kə-ˈlü-zhən \

Definition of collusion

: secret agreement or cooperation especially for an illegal or deceitful purpose acting in collusion with the enemy

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Other Words from collusion

collusive \ kə-​ˈlü-​siv , -​ziv \ adjective
collusively adverb

Examples of collusion in a Sentence

The company was acting in collusion with manufacturers to inflate prices. there was collusion between the two companies to fix prices

Recent Examples on the Web

Manafort has repeatedly denied his involvement with DNC email hack, but this revelation could come under scrutiny by special counsel Robert Mueller and his investigation into Russian collusion in the 2016 presidential election. Makena Kelly, The Verge, "WikiLeaks calls for Guardian editor’s decapitation if Manafort story proves false," 27 Nov. 2018 And at a time the president is pressuring law enforcement to end its investigation into Russian collusion during the campaign, a report that tarnishes the FBI’s credibility provides useful ammunition for Trump. Evan Halper,, "Inspector general details FBI's missteps during 2016 campaign," 14 June 2018 The two actors made a surprise appearance during the show’s cold open on Saturday, parodying the investigation into alleged Russian collusion in the 2016 presidential election. Ale Russian,, "Robert De Niro and Ben Stiller Turn Meet the Parents Into Trump Drama on Saturday Night Live: 'Yikes!'," 15 Apr. 2018 Turning to a Fox News commentator for support, Trump again criticized Special Counsel Robert Mueller over his probe of potential Russian collusion., "+1 212 318 2000," 21 Mar. 2018 There was no collusion by President Trump in any way, shape or form. Lynn Yaeger, Vogue, "The Week in Washington: “I Never Worked for Russia!”," 20 Jan. 2019 Special counsel Robert Mueller is investigating whether there was any collusion between the Trump campaign and the Kremlin. Alex Ward, Vox, "The 2018 US midterm election results are in — and Russia feels like it lost.," 7 Nov. 2018 In addition to investigating Russian meddling, Mueller and his team are investigating whether there was collusion between the Trump campaign and the Kremlin and whether President Donald Trump obstructed justice. Erin Kelly, USA TODAY, "House Republicans tie watchdog report on Clinton email case to credibility of Russia probe," 19 June 2018 The move dramatically ratchets up pressure on Manafort, 69, as Mueller continues to investigate whether there was collusion between the Trump campaign and Russians to interfere in the 2016 presidential election. NBC News, "Paul Manafort headed to jail after witness tampering allegation," 15 June 2018

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

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First Known Use of collusion

14th century, in the meaning defined above

History and Etymology for collusion

Middle English, from Anglo-French, from Latin collusion-, collusio, from colludere — see collude

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Statistics for collusion

Last Updated

11 Feb 2019

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Time Traveler for collusion

The first known use of collusion was in the 14th century

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More Definitions for collusion



Financial Definition of collusion

What It Is

Collusion, also known as price rigging or price fixing,  occurs when several individuals and/or businesses agree to set the price for something.

How It Works

For example, let’s assume that there are four major cable providers in the U.S. The four companies meet secretly and agree not to compete with one another for customers in certain geographic areas of the country. To accomplish this, they agree on which of the four providers will "get" each territory by offering the best price or service in that territory. The other three firms agree to not offer a lower price in that territory. In return, each of the three other firms get their own territory with the same agreement. By doing this, the four providers ensure that no other competitors will enter the markets, thereby preserving their profits and territories as a whole.

In the stock market, traders with inside information might collude on trades in order to benefit from the inside information.

Why It Matters

Collusion is illegal because it interferes with the natural market forces of supply and demand and harms consumers by inhibiting competition.

Source: Investing Answers



English Language Learners Definition of collusion

: secret cooperation for an illegal or dishonest purpose


col·​lu·​sion | \ kə-ˈlü-zhən \

Legal Definition of collusion

: the act or an instance of colluding

Other Words from collusion

collusive \ -​siv \ adjective

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Comments on collusion

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to express emotion in a dramatic way

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