accomplice

Definitions

A person who helps another commit a crime.

A partner in wrongdoing or a questionable act.

Examples

The police arrested the getaway driver as an accomplice to the bank robbery.

She refused to act as an accomplice in her brother's scheme to cheat on the exam.

Synonyms

partner collaborator associate cohort accessory confederate ally

Antonyms

adversary opponent enemy antagonist rival accuser prosecutor