falsify

verb

fal·​si·​fy ˈfȯl-sə-ˌfī How to pronounce falsify (audio)
falsified; falsifying

transitive verb

1
: to prove or declare false : disprove
2
: to make false: such as
a
: to make false by mutilation or addition
the accounts were falsified to conceal a theft
b
: to represent falsely : misrepresent
3
: to prove unsound by experience

intransitive verb

: to tell lies : lie
falsifiable adjective
falsification noun
falsifier noun

Examples of falsify in a Sentence

He was caught falsifying financial accounts. taking that statement completely out of context essentially falsifies it, whether that's your intention or not
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Mangan filed two reports regarding the incident which prosecutors accuse him of falsifying. Flint McColgan, Boston Herald, 29 Oct. 2025 Flores faces up to 10 years in prison if convicted of the civil rights charge and up to 20 years if convicted of falsifying a record in a federal investigation. Alex Riggins, San Diego Union-Tribune, 29 Oct. 2025 This gives the false impression that scientific progress comes only in paradigm-shifting insights that overturn previous thinking, and that all new hypotheses are equally probable until falsified. Zack Savitsky, Quanta Magazine, 29 Oct. 2025 Under New York state law, falsifying business records becomes a felony if the records were falsified to commit or conceal another crime. Aaron Katersky, ABC News, 28 Oct. 2025 See All Example Sentences for falsify

Word History

Etymology

Middle English falsifien, from Middle French falsifier, from Medieval Latin falsificare, from Latin falsus

First Known Use

15th century, in the meaning defined at transitive sense 1

Time Traveler
The first known use of falsify was in the 15th century

Browse Nearby Words

Cite this Entry

“Falsify.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/falsify. Accessed 5 Nov. 2025.

Kids Definition

falsify

verb
fal·​si·​fy ˈfȯl-sə-ˌfī How to pronounce falsify (audio)
falsified; falsifying
: to make false : change so as to deceive
falsify financial accounts
falsification noun
falsifier noun

Legal Definition

falsify

transitive verb
fal·​si·​fy ˈfȯl-si-ˌfī How to pronounce falsify (audio)
falsified; falsifying
: to make false: as
a
: to make (as a document) false by mutilation, alteration, or addition
the motel clerk had falsified the recordsM. A. Kelly
b
: to report (as information) falsely
the informant falsified his testimony

More from Merriam-Webster on falsify

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