D defs.my
Entry 1 sense Webster, 1913

Collude

/kəl-o͞od'/ · Col·lude · IPA /kəˈluːd/
01 v. i. To have secretly a joint part or share in an action; to play into each other's hands; to conspire; to act in concert.
imp. & p. p. Colluded; p. pr. & vb. n. Colluding
  1. 1.
    To have secretly a joint part or share in an action; to play into each other's hands; to conspire; to act in concert.
    “If they let things take their course, they will be represented as colluding with sedition.” Burke.