forgery — the crime of falsely making or altering a writing by which the legal rights or obligations of another person are apparently affected; simulated signing of another person's name to any such writing whether or not it is also the forger's name.
fraudulence — characterized by, involving, or proceeding from fraud, as actions, enterprise, methods, or gains: a fraudulent scheme to evade taxes.
camouflage — Camouflage consists of things such as leaves, branches, or brown and green paint, which are used to make it difficult for an enemy to see military forces and equipment.
pretence — pretending or feigning; make-believe: My sleepiness was all pretense.
imposture — the action or practice of imposing fraudulently upon others.
falsification — to make false or incorrect, especially so as to deceive: to falsify income-tax reports.
disguise — to change the appearance or guise of so as to conceal identity or mislead, as by means of deceptive garb: The king was disguised as a peasant.
cover up — If you cover something or someone up, you put something over them in order to protect or hide them.