9 Grammatical Pitfalls


[kuh-loo-zhuh n] /kəˈlu ʒən/
a secret agreement, especially for fraudulent or treacherous purposes; conspiracy:
Some of his employees were acting in collusion to rob him.
Law. a secret understanding between two or more persons to gain something illegally, to defraud another of his or her rights, or to appear as adversaries though in agreement:
collusion of husband and wife to obtain a divorce.
Origin of collusion
1350-1400; Middle English (< Middle French) < Latin collūsiōn- (stem of collūsiō), equivalent to collūs(us) (past participle of collūdere to collude) + -iōn- -ion
Related forms
noncollusion, noun
precollusion, noun
Can be confused
collision, collusion.
1. intrigue, connivance, complicity. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for collusion
  • There are a thousand questions about how to prevent collusion and other sorts of price manipulation.
  • The costs of collusion should make any boss think twice, though.
  • In good times industrial collusion, overseen by bureaucrats, is practically official policy.
  • Quiet diplomacy might work, but it can also let topics slip by and leave a public perception of indifference or collusion.
  • Secondly there was a collusion, all reports say there was one.
  • If they decrease output, it's on an individual basis, without any collusion.
  • Under certain market conditions, cartels arise naturally without collusion.
  • However, this might be similar to the collusion between the gas and car industry.
  • It will be interesting to see if there was collusion involved.
  • For the first time, the collusion rule would explicitly impose reporting requirements on applicants.
British Dictionary definitions for collusion


secret agreement for a fraudulent purpose; connivance; conspiracy
a secret agreement between opponents at law in order to obtain a judicial decision for some wrongful or improper purpose
Derived Forms
collusive, adjective
Word Origin
C14: from Latin collūsiō, from collūdere to collude
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
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Word Origin and History for collusion

late 14c., from Old French collusion, from Latin collusionem (nominative collusio) "act of colluding," from colludere, from com- "together" (see com-) + ludere "to play," from ludus "game" (see ludicrous). "The notion of fraud or underhandedness is essential to collusion" [Fowler].

Online Etymology Dictionary, © 2010 Douglas Harper
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