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

The trial lasted three weeks and featured testimony from Robin Smith, whom prosecutors said was an alleged coconspirator in the scheme. —Evan Mealins, The Tennessean, 2 July 2025

The trial lasted three weeks and featured testimony from former Rep. Robin Smith, R-Hixson, whom prosecutors said was an alleged coconspirator in the scheme. —Laura L. Davis, Nashville Tennessean, 17 May 2025

One method involved providing drugs, cash and free housing to coconspirators, whom the lawsuit accused of helping Williams prey on victims, according to the complaint. —Julia Marnin, Miami Herald, 19 Feb. 2025

The accused's attorney, Ruben Ortiz, suggested at the hearing that the coconspirators in the border smuggling operation may be falsely implicating his client. —Josh Hammer, Newsweek, 17 Feb. 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.