To conspire is to work together and secret plans, or that events are happening that seem to lead to a particular situation or result.
To feign ignorance of or fail to take measures against a wrong, thus implying tacit encouragement or consent:
To plot or scheme secretly or underhandedly
To conceive and arrange the action and incidents of:
(Intransitive) To work or act together, especially for a common purpose or benefit.
The definition of devise is to plan or create by thinking through.
To scheme is to plot or plan to do something.
To work out a secret plan to achieve an evil or illegal end
To have as a specific aim or purpose; intend:
Find another word for collude. In this page you can discover 18 synonyms, antonyms, idiomatic expressions, and related words for collude, like: complicit, conspire, connive, intrigue, plot, cooperate, abet, collaborate, devise, scheme and machinate.