From WordNet (r) 3.0 (2006):
fraud n 1: intentional deception resulting in injury to another person 2: a person who makes deceitful pretenses [syn: imposter, impostor, pretender, fake, faker, fraud, sham, shammer, pseudo, pseud, role player] 3: something intended to deceive; deliberate trickery intended to gain an advantage [syn: fraud, fraudulence, dupery, hoax, humbug, put-on]