The definition of collusion is a conspiracy or a secret agreement for an illegal or immoral reason.(noun)
When two people plan to rob a bank together, this is an example of collusion.
See collusion in Webster's New World College Dictionary
Origin: ME < L collusio < collusus, pp. of colludere: see collude
See collusion in American Heritage Dictionary 4
Origin: Middle English
Origin: , from Latin collūsiō, collūsiōn-
Origin: , from collūsus
Origin: , past participle of collūdere, to collude; see collude.
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