ACCOMPLICE
accomplice, confederate
(noun) a person who joins with another in carrying out some plan (especially an unethical or illegal plan)
Source: WordNet® 3.1
Etymology
Noun
accomplice (plural accomplices)
(legal) An associate in the commission of a crime; a participator in an offense, whether a principal or an accessory.
(rare) A cooperator.
• William Shakespeare, Henry VI, Part I, V-ii
Usage notes
• Followed by with or of before a person and by in or to (or sometimes of) before the crime; as, "A was an accomplice with B in the murder of C"; or, "D was an accomplice to murder".
Synonyms
• abettor, accessory, assistant, associate, confederate, coadjutor, ally, promoter; see abettor.
Source: Wiktionary
Ac*com"plice, n. Etym: [Ac- (perh. for the article a or for L. ad) +
E. complice. See Complice.]
1. A cooperator. [R.]
Success unto our valiant general, And happiness to his accomplices!
Shak.
2. (Law)
Definition: An associate in the commission of a crime; a participator in an
offense, whether a principal or an accessory. "And thou, the cursed
accomplice of his treason." Johnson.
Note: It is followed by with or of before a person and by in (or
sometimes of) before the crime; as, A was an accomplice with B in the
murder of C. Dryden uses it with to before a thing. "Suspected for
accomplice to the fire." Dryden.
Syn.
– Abettor; accessory; assistant; associate; confederate; coadjutor;
ally; promoter. See Abettor.
Source: Webster’s Unabridged Dictionary 1913 Edition