Pronunciation: (fôl'su-fī), [key]
—v., -fied, -fy•ing.
1. to make false or incorrect, esp. so as to deceive: to falsify income-tax reports.
2. to alter fraudulently.
3. to represent falsely: He falsified the history of his family to conceal his humble origins.
4. to show or prove to be false; disprove: to falsify a theory.
to make false statements.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.