As a noun colluder
is one who conspires in a fraud.
As a verb colluded is
past tense of collude.
colluded
English
Verb
(head)
(collude)
collude
English
Verb
(collud)
to act in concert with; to conspire
Synonyms
* to be in cahoots
* conspire
* plot
* scheme
Related terms
* collusion