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

The meeting appears to have been the first time Mueller raised the possibility of compelling Trump to testify as part of his investigation into allegations of collusion between the Trump campaign and Russian officials ahead of the 2016 election. Samuel Chamberlain, Fox News, "Mueller told Trump legal team a presidential subpoena could be possible, ex-attorney says," 2 Oct. 2018 Russia has been accused of meddling in the 2016 U.S. presidential elections, and several high-level investigations are examining the possibility of collusion between Trump’s campaign and Russian officials. Siobhan Morrin, Time, "President Trump Says His Putin Meeting Will Be 'Easiest of Them All' Ahead of Europe Trip," 10 July 2018 Both worked on the Clinton investigation and also on the Special Counsel Robert Mueller's probe of possible collusion between the Trump campaign and Russia. Ken Dilanian /, NBC News, "FBI agent Peter Strzok said he was sorry for anti-Trump texts, say Democrats," 2 July 2018 The report indicates there was collusion between former Superintendent Julio Fonseca and former Deputy Superintendent Arturo Sanchez-Macias. David Hernandez,, "Audit of San Ysidro finds fraud or misappropriation of funds may have happened at school district," 15 June 2018 State Democratic Chairman Nick Balletto bristled at the narrative that there is collusion between the party and Lamont’s campaign. Neil Vigdor,, "Democrats Coalescing Around Ned Lamont In Governor's Race," 28 Apr. 2018 Some critics have drawn a connection to Special Counsel Robert Mueller’s investigation of possible collusion between the president’s campaign and the Russian government, or to Trump’s past business relationships with Russian figures., "Trump's Russian Expulsions Leave Moscow Stunned," 27 Mar. 2018 Third, and most consequential to the NFL, the disinvitation fits the theory of collusion advanced by Colin Kaepernick’s attorneys, Mark Geragos and Ben Meiselas. Michael Mccann,, "Why White House Rescinding Invitation to Eagles Could Boost Colin Kaepernick’s Collusion Case," 4 June 2018 Kaepernick was not signed after opting out of his contract with the 49ers and filed a grievance accusing teams of collusion. Reid Laymance, Houston Chronicle, "Texans owner Bob McNair says NFL fields not place for political statements," 25 Mar. 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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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 enclose within walls

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