偽造【ぎぞう】
forgery, counterfeiting, fabrication, falsification
虚偽【きょぎ】
falsehood, untruth, lie, misinformation, fallacy (logic)
偽装【ぎそう】
camouflage, disguise, pretense, feigning, masquerade
真偽【しんぎ】
truth or falsehood, genuineness, authenticity, veracity
偽証【ぎしょう】
false evidence, perjury, false testimony
偽物【にせもの】
spurious article, forgery, counterfeit, imitation, sham
偽る【いつわる】
to lie, to pretend, to feign, to falsify, to deceive, to trick