Definition of: falsify

(fôl′sə·fī) v. ·fied, ·fy·ing v.t.
1. To misrepresent; tell lies about.
2. To prove to be false; disprove;
3. Law To tamper with, as a document.
4. In prosody, to alter (an accent in a poem) from the usual form or rule.
—v.i.
5. To tell falsehoods; lie. See synonyms under PERVERT. [<F falsifier <LL falsificare <L falsificus making false <falsus FALSE + facere make]
—fal′si·fi′er noun