collude

As a noun colluder

is one who conspires in a fraud.

As a verb collude is

to act in concert with; to conspire.

As a noun taxonomy

is the science or the technique used to make a classification.

As a verb collude is

to act in concert with; to conspire.

As verbs the difference between collaborate and collude

is that collaborate is to work together with others to achieve a common goal while collude is to act in concert with; to conspire.

In intransitive terms the difference between collude and intrigue

is that collude is to act in concert with; to conspire while intrigue is to have clandestine or illicit intercourse.

As a noun intrigue is

a complicated or clandestine plot or scheme intended to effect some purpose by secret artifice; conspiracy; stratagem.

As a verb collude

is to act in concert with; to conspire.

As an adjective accessory is

having a secondary, supplementary or subordinate function by accompanying as a subordinate; aiding in a secondary way; being additional; being connected as an incident or subordinate to a principal; contributing or being contributory. Said of persons and things, and, when of persons, usually in a bad sense; as, he was accessory to the riot; accessory sounds in music.

As a noun accessory is

something that belongs to part of another main thing; something additional and subordinate, an attachment.

As verbs the difference between collide and collude

is that collide is to impact directly, especially if violent while collude is to act in concert with; to conspire.