篡改

[ noun ]
the act of determining that something is false
<noun.act>

Falsify \Fal"si*fy\, v. t. [imp. & p. p. {Falsified}; p. pr. &
vb. n. {Falsifying}.] [L. falsus false + -ly: cf. F.
falsifier. See {False}, a.]
1. To make false; to represent falsely.

The Irish bards use to forge and falsify everything
as they list, to please or displease any man.
--Spenser.

2. To counterfeit; to forge; as, to falsify coin.

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

By how much better than my word I am,
By so much shall I falsify men's hope. --Shak.

Jews and Pagans united all their endeavors, under
Julian the apostate, to baffle and falsify the
prediction. --Addison.

4. To violate; to break by falsehood; as, to falsify one's
faith or word. --Sir P. Sidney.

5. To baffle or escape; as, to falsify a blow. --Butler.

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

7. (Equity) To show, in accounting, (an inem of charge
inserted in an account) to be wrong. --Story. Daniell.

8. To make false by multilation or addition; to tamper with;
as, to falsify a record or document.