1. (v.) To make false; to represent falsely.

2. (v.) To counterfeit; to forge; as, to falsify coin.

3. (v.) To prove to be false, or untrustworthy; to confute; to disprove; to nullify; to make to appear false.

4. (v.) To violate; to break by falsehood; as, to falsify one's faith or word.

5. (v.) To baffle or escape; as, to falsify a blow.

6. (v.) To avoid or defeat; to prove false, as a judgment.

7. (v.) To show, in accounting, (an item of charge inserted in an account) to be wrong.

8. (v.) To make false by mutilation or addition; to tamper with; as, to falsify a record or document.

9. (v. i.) To tell lies; to violate the truth.

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