As a verb colluded
As an adjective confederate is
of or relating to the confederate states of america.
As a noun confederate is
a supporter or resident of the confederate states of america.
to act in concert with; to conspire
* to be in cahoots
a member of a confederacy
an accomplice in a plot
(psychology) An actor who participates in a psychological experiment pretending to be a subject but in actuality working for the researcher (also known as a "stooge").
- He found some of his confederates in gaol.
of, relating to, or united in a confederacy
banded together; allied.
- All the swords / In Italy, and her confederate arms, / Could not have made this peace.
* , Youth's Antiphony, lines 11-12
*: Hour after hour, remote from the world's throng,
*: Work, contest, fame, all life's confederate pleas
To combine into a confederacy.