[kuh-loo-zhuh
n] 
| 1. | a secret agreement, esp. for fraudulent or treacherous purposes; conspiracy: Some of his employees were acting in collusion to rob him. |
| 2. | 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. |
| col·lu·sion (kə-lōō'zhən) 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.] |