n. pl. con·spir·a·cies
1. An agreement to perform together an illegal, wrongful, or subversive act.
2. A group of conspirators.
3. Law An agreement between two or more persons to commit a crime or accomplish a legal purpose through illegal action.
4. A joining or acting together, as if by sinister design: a conspiracy of wind and tide that devastated coastal areas.
[Middle English conspiracie, from Anglo-Norman, probably alteration of Old French conspiration, from Latin cōnspīrātiō, cōnspīrātiōn-, from cōnspīrātus, past participle of cōnspīrāre, to conspire; see CONSPIRE.]
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