"Benedict Arnold" is a term used to describe someone who betrays their country or organization. However, there are several synonyms for this infamous term, including traitor, turncoat, defector, betrayer, deserter, renegade, and Judas. These terms all refer to someone who abandons their allegiances and switches sides, often for personal gain or to avoid punishment. Benedict Arnold himself is a well-known example of this type of person, having switched his loyalties from the American Revolution to the British Army. While the term "Benedict Arnold" may be the most well-known, these synonyms accurately describe anyone who has betrayed their country or organization.