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v. fal·si·fied, fal·si·fy·ing, fal·si·fies
1. To state untruthfully; misrepresent.
a. To make false by altering or adding to: falsify testimony.
b. To counterfeit; forge: falsify a visa.
3. To declare or prove to be false.
To make untrue statements; lie.

[Middle English falsifien, from Old French falsifier, from Late Latin falsificāre : Latin falsus, false; see false + Latin -ficāre, -fy.]

fal′si·fi·ca′tion (-fĭ-kā′shən) n.
fal′si·fi′er n.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.falsifier - someone who falsifies
beguiler, cheater, deceiver, trickster, slicker, cheat - someone who leads you to believe something that is not true


One who tells lies:
Informal: storyteller.
Law: perjurer.
References in classic literature ?
The women put on a different dress almost every day; the dress is usually fine, but absurd in shape; the very shape and fashion of it changes twice in a hundred years; and did I but covet to be called an extravagant falsifier, I would say it changed even oftener.
Dorie, raised by loving adoptive parents, is a smoking, drinking, Twinkie-sneaking falsifier of news for The Comet.
Loin d'assurer, Mimou va, avec l'aide de son oncle, un jeune revolutionnaire pour qui le changement politique est le but ultime, falsifier ses releves de notes afin de ne pas decevoir son pere.
Ensuite, les malfaiteurs se sont presentes aupres de la proprietaire en tant qu'acheteurs avant de falsifier la carte d'identite nationale et l'acte de propriete du terrain.
Mikdad added that Turkish Foreign Minister Ahmet Davutoglu is hysterical because he is a true accomplice in shedding Syrian blood, an extremist who holds allegiance to Al Qaeda in one way or another, and a falsifier and distorter of facts who misleads the Turkish people and government, in addition to being "a caricature representing a farce that should come to an end.
Biadillah a donne un apercu des efforts deployes par le Maroc en matiere des droits et libertes a travers tout le territoire national, dont les provinces du Sud, notant que les adversaires de l'integrite territoriale du Royaume exploitent la question des droits de l'Homme et les medias pour falsifier la realite et enduire en erreur l'opinion publique internationale, poursuit le document.
Le rapport du Conseil national des droits de l'Homme n'a pas oublie d'enregistrer la participation, pour la premiere fois, des Egyptiens de la diaspora aux premieres elections libres et honnetes, apres avoir enregistre des taux de participation et d'affluence sans precedent, puisque le peuple a desormais confiance aux organes de l'Etat, qui n'interviendront plus pour falsifier les resultats, comme ce qui se passait auparavant.
Thanks in part to a popular book that painted the author of the seminal moth studies, Bernard Kettlewell, as a falsifier of data driven by personal motivations, ecological geneticists have taken a second look at the definitive peppered moth studies of the 1950s, re-evaluating Kettlewell's most basic assumptions.
He added that Abu Adas is the "first falsifier until the contrary is proved.
32) The Sunnis, for their part, viewed al-Balawi as a falsifier of hadith and as the author of a work known as Rihlat al-Shafi'i ("the journey of al-Shafici" [to Egypt]) or alternatively Mihnat al-ShafiH ("the trial or interrogation of al-Shafici"), either way, according to Ibn Hajar, a notorious fabrication.
Inexorably associated with the Faurisson affair, which describes the controversy ensuing from Chomsky's endorsement of the Holocaust denier Robert Faurisson's right to freedom of expression and the subsequent inclusion of an essay by Chomsky in Faurisson's Memoire en defense contre ceux qui m'accusent de falsifier l'histoire: La question des chambres a gaz (1980), Chomsky is, according to Barsky, the victim of a culture clash between American pragmatism and lofty French standards of interpretation, as well as of his own Chomsky Effect.