Synonyms for Fraudulence (same or very similar meaning)
WordNet sense 1 (a fraudulent or duplicitous representation):
duplicityWordNet sense 2 (the quality of being fraudulent):
deceitWordNet sense 3 (something intended to deceive; deliberate trickery intended to gain an advantage):
fraud, hoax, humbug, put-on, duperyFrom the ODE community, based on WordNetadd/edit