- The definition of collude means to secretly work with someone on something illegal or deceitful.
A bank teller planning a bank robbery with a customer is an example of to collude.
intransitive verbcol·lud·ed, col·lud·ing, col·ludes
Origin of colludeLatin collūdere : com-, com- + lūdere, to play; see leid- in Indo-European roots.
(third-person singular simple present colludes, present participle colluding, simple past and past participle colluded)