conspiracy

noun

con·​spir·​a·​cy kən-ˈspir-ə-sē 

plural conspiracies

1

: the act of conspiring together

They were accused of conspiracy to commit murder.

2

a

: an agreement among conspirators

uncovered a conspiracy against the government

b

: a group of conspirators

a conspiracy made up of disgruntled aristocrats

see also conspiracy theory

Synonyms

• cabal
• crew
• gang
• Mafia
• mob
• ring
• syndicate

Choose the Right Synonym for conspiracy

plot, intrigue, machination, conspiracy, cabal mean a plan secretly devised to accomplish an evil or treacherous end.

plot implies careful foresight in planning a complex scheme.

an assassination plot

intrigue suggests secret underhanded maneuvering in an atmosphere of duplicity.

backstairs intrigue

machination implies a contriving of annoyances, injuries, or evils by indirect means.

the machinations of a party boss

conspiracy implies a secret agreement among several people usually involving treason or great treachery.

a conspiracy to fix prices

cabal typically applies to political intrigue involving persons of some eminence.

a cabal among powerful senators

Examples of conspiracy in a Sentence

The CIA uncovered a conspiracy against the government.

They were accused of conspiracy to commit murder.

Recent Examples on the Web

As doctors tried to treat her, Kate’s parents openly discussed their suspicions that a conspiracy was forming around them – and that medical staff couldn’t be trusted. —Hilary Whiteman, CNN, 15 Feb. 2025

Freddy Artemio Guerrero Soto, 29, a national of the Dominican Republic, pleaded guilty to conspiracy to distribute and possess with intent to distribute 400 grams or more of fentanyl and possession with intent to distribute 400 grams or more of fentanyl. —Flint McColgan, Boston Herald, 14 Feb. 2025

Holmes was convicted on four of 11 charges — three counts of wire fraud and one count of conspiracy to commit wire fraud — for deceiving investors while running Theranos, a once high-flying healthcare startup that collapsed in 2022 amid a massive fraud scandal. —Danielle Bacher, People.com, 14 Feb. 2025

Jamie Shockley has been charged with conspiracy to commit murder, intimidation: threat to commit terrorism, and conspiracy intimidation, according to Morgan County court documents. —Doha Madani, NBC News, 13 Feb. 2025

Word History

Etymology

Middle English conspiracie, from Latin conspirare — see conspire

First Known Use

14th century, in the meaning defined at sense 1

Phrases Containing conspiracy

• conspiracy of silence
• conspiracy theorist
• conspiracy theory
• counter-conspiracy

Kids Definition

conspiracy

noun

con·​spir·​a·​cy kən-ˈspir-ə-sē 

plural conspiracies

1

: the act of conspiring together

2

a

: an agreement among conspirators

b

: a group of conspirators

Legal Definition

conspiracy

noun

con·​spir·​a·​cy kən-ˈspir-ə-sē 

plural conspiracies

1

: an agreement between two or more people to commit an act prohibited by law or to commit a lawful act by means prohibited by law

also : the crime or tort of participating in a conspiracy compare substantive crime

Note: Some states require an overt act in addition to the agreement to constitute conspiracy.

— chain conspiracy

: a conspiracy in which the conspirators act separately and successively (as in distributing narcotics)

— civil conspiracy

: a conspiracy that is not prosecuted as a crime but that forms the grounds for a lawsuit

— criminal conspiracy

: a conspiracy prosecuted as a crime

2

: a group of conspirators

Etymology

Latin conspiratio, from conspirare to conspire see conspire