collude /kəˈluːd/ verb/fiil
to do something secretly with another person or group, in order to deceive or cheat others
gizli planlar yapmak, arkasından bir şeyler çevirmek, gizlice aldatmak
The company colluded with competitors to fix prices.
collusion /kəˈluːʒən/ noun/isim hile
He was accused of being in collusion with the terrorists.