1. [verb] (transitive) To alter so as to make false; to make incorrect.
2. [verb] (transitive) To misrepresent.
3. [verb] (transitive) To prove to be false.
4. [verb] (transitive) To counterfeit; to forge.
5. [verb] (transitive) (finance) To show, in accounting, (an item of charge inserted in an account) to be wrong.
6. [verb] (transitive) (obsolete) To baffle or escape.
7. [verb] (transitive) (obsolete) To violate; to break by falsehood.
8. [verb] Make false by mutilation or addition; as of a message or story.
9. [verb] Tamper, with the purpose of deception; 'Fudge the figures'; 'cook the books'; 'falsify the data'.
10. [verb] Prove false; 'Falsify a claim'.
11. [verb] Falsify knowingly; 'She falsified the records'.
12. [verb] Insert words into texts, often falsifying it thereby.