n.
A secret agreement between two or more parties for a fraudulent, illegal, or deceitful purpose.
[Middle English, from Latin collūsiō, collūsiōn-, from collūsus, past participle of collūdere, to collude. See collude.]
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
