Definition of "collude" [col•lude]

• To act together secretly to achieve a fraudulent, illegal, or deceitful purpose; conspire. (verb-intransitive)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The U.S. Department of Justice says it has launched a new investigation into price-fixing in the industry, examining whether record labels collude to keep up the price they charge online retailers, and whether those retailers are in on the scam."
• "It operates under a specific exemption for exports under Canada's competition laws allowing its three major potash producers to "collude" and coordinate sales outside North America."
• "After a year and a half long investigation, prosecutors have been unable to provide an estimate of the alleged "illegal profits" that Chen was supposed to have gained or show how Chen could meaningfully "collude" with other defendants to alter county government documents."