CONSPIRACY
conspiracy, cabal
(noun) a plot to carry out some harmful or illegal act (especially a political plot)
conspiracy, confederacy
(noun) a secret agreement between two or more people to perform an unlawful act
conspiracy, confederacy
(noun) a group of conspirators banded together to achieve some harmful or illegal purpose
Source: WordNet® 3.1
Etymology
Noun
conspiracy (countable and uncountable, plural conspiracies)
The act of two or more persons, called conspirators, working secretly to obtain some goal, usually understood with negative connotations.
(legal) An agreement between two or more persons to break the law at some time in the future.
A group of ravens.
A group of lemurs.
(linguistics) A situation in which different phonological or grammatical rules lead to similar or related outcomes.
(by ellipsis) A conspiracy theory; a hypothesis alleging conspiracy.
Verb
conspiracy (third-person singular simple present conspiracies, present participle conspiracying, simple past and past participle conspiracied)
(rare, proscribed) To conspire.
Source: Wiktionary
Con*spir"a*cy, n.; pl. Conspiracies. Etym: [See Conspiration.]
1. A combination of men for an evil purpose; as agreement, between
two or more persons, to commit a crime in concert, as treason; a
plot.
When shapen was all his conspiracy From point to point. Chaucer.
They made a conspiracy against [Amaziah]. 2 Kings xiv. 19.
I had forgot that foul conspiracy
Of the beast Caliban and his confederates. Shak.
2. A concurence or general tendency, as of circumstances, to one
event, as if by agreement.
A conspiracy in all heavenly and earthly things. Sir P. Sidney.
3. (Law)
Definition: An agreement, manifesting itself in words or deeds, by which
two or more persons confederate to do an unlawful act, or to use
unlawful to do an act which is lawful; confederacy.
Syn.
– Combination; plot; cabal.
Source: Webster’s Unabridged Dictionary 1913 Edition