1. to work together secretly to do something illegal or dishonest

Examples

• The two companies colluded to fix prices and eliminate competition.
• Government officials were accused of colluding with criminal organizations.
• The students colluded to cheat on the final exam.
• Several bidders colluded to manipulate the auction results.
• The investigation revealed that the witnesses had colluded to give false testimony.
• Corporate executives colluded to hide financial losses from investors.