falsify
     v 1: make false by mutilation or addition; as of a message or
          story [syn: {distort}, {garble}, {warp}]
     2: fake or falsify; "Fudge the figures"; "cook the books";
        "falsify the data" [syn: {fudge}, {manipulate}, {fake}, {cook},
         {wangle}, {misrepresent}]
     3: prove false; "Falsify a claim"
     4: falsify knowingly; "She falsified the records" [ant: {correct}]
     5: insert words into texts, often falsifying it thereby [syn: {interpolate},
         {alter}]
     [also: {falsified}]
Source: WordNet® 2.0