coconspirator

noun

co·​con·​spir·​a·​tor ˌkō-kən-ˈspir-ə-tər 

variants or co-conspirator

plural coconspirators or co-conspirators

: a person who conspires with one or more others : a fellow conspirator

… he was named as an unindicted coconspirator …

—Trans-Action

Five of his co-conspirators were also jailed for their roles in the plot.

—Tom Powell

… was one of four alleged co-conspirators indicted following what officials called one of the largest data breaches in history …

—Stewart Bell and Adrian Humphreys

Examples of coconspirator in a Sentence

Recent Examples on the Web

After the companies were banned from participating in the Mass Save Program, Cleggett and his coconspirators formed other companies to obtain further funding. —Colleen Cronin, Boston Herald, 14 Jan. 2026

On July 21, 2020, Harper and several coconspirators also opened fire at Weatbersby's funeral, leaving many wounded, the indictment said. —Adam Harrington, CBS News, 22 Dec. 2025

Data Set 6 appears to mostly be grand jury materials from cases out of the Southern District of New York against Epstein and his coconspirator, Ghislaine Maxwell. —Brian Barrett, Wired News, 22 Dec. 2025

Several of Hernández’s coconspirators were convicted first, including Hernández’s brother, Juan Antonio Hernández Alvarado, a former Honduran congressman sentenced to life in prison in March 2021. —Josh Meyer, USA Today, 5 Dec. 2025

Word History

First Known Use

1863, in the meaning defined above

Phrases Containing coconspirator

• unindicted coconspirator

Rhymes for coconspirator

• conspirator

Legal Definition

co-conspirator

noun

co-con·​spir·​a·​tor

ˌkō-kən-ˈspir-ə-tər

: a fellow conspirator

Note: Under Federal law, a statement made by a co-conspirator during and to further the conspiracy is admissible as evidence, but there must be other evidence establishing both the conspiracy and the defendant's participation.