#1 falsify v. [distort, garble, warp] make false by mutilation or addition; as of a message or story. wn
#2 falsify v. [fudge, manipulate, fake, cook, wangle, misrepresent] tamper, with the purpose of deception; "Fudge the figures"; "cook the books"; "falsify the data". wn
#3 falsify v. prove false; "Falsify a claim". wn
#4 falsify v. falsify knowingly; "She falsified the records". wn
#5 falsify v. [interpolate, alter] insert words into texts, often falsifying it thereby. wn
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