| Accomplice (n.) An associate in the commission of a crime; a participator in an offense, whether a principal or an accessory. Thesaurus Entries a party to, abettor, accessary, accessory, accomplice in crime, ally, assistant, associate, coconspirator, cohort, collaborator, colleague, confederate, conspirator, copartner, cotenant, fellow, fellow conspirator, henchman, partaker, participant, participator, partner, party, shareholder, sharer, socius criminis |