There are various synonyms for the phrase "sells one soul." This expression typically refers to sacrificing one's integrity or values in exchange for personal gain. Alternatives for "sells one soul" include betraying one's principles, compromising one's ethics, bartering one's beliefs, and trading one's morals. Selling one's soul can also be interpreted as making a Faustian bargain, which refers to an arrangement in which a person gives up something of great value in exchange for something of lesser worth. Essentially, all of these phrases convey the idea that there are consequences to be faced when an individual abandons their moral compass for personal benefits.