perjury

noun

per·​ju·​ry ˈpər-jə-rē How to pronounce perjury (audio)
ˈpərj-rē
: the voluntary violation of an oath or vow either by swearing to what is untrue or by omission to do what has been promised under oath : false swearing

Did you know?

The prefix per- in Latin often meant "harmfully". So witnesses who perjure themselves do harm to the truth by knowingly telling a lie. Not all lying is perjury, only lying under oath; so perjury generally takes place either in court or before a legislative body such as Congress. To avoid committing perjury, a witness or defendant may "take the Fifth": that is, refuse to answer a question because the answer might be an admission of guilt, and the Fifth Amendment to the Constitution forbids forcing a citizen to admit to being guilty of a crime.

Examples of perjury in a Sentence

He was found guilty of perjury.
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.
Bonds was indicted in 2007 on perjury charges as well as obstruction of justice for allegedly lying in front of a grand jury during the government’s investigation into BALCO, a main manufacturer of an undetectable steroid that was running rampant in the league. Scott Thompson, Fox News, 6 Mar. 2025 During a preliminary court hearing Friday in Centennial, prosecutors said James Craig is facing additional new felony charges related to plotting the killing of four people: solicitation to commit murder and solicitation to commit perjury. Andi Babineau and Ray Sanchez, CNN, 14 Feb. 2025 During his lengthy summation Friday, Tacopina repeatedly accused Ephron of fabricating or destroying evidence, lying to police, and committing perjury on the witness stand. Nancy Dillon, Rolling Stone, 14 Feb. 2025 Craig faces seven felony charges, including first-degree murder, tampering with evidence, solicitation to commit first-degree murder and solicitation to commit perjury in the 2023 death of his wife. Lauren Penington, The Denver Post, 16 Dec. 2024 See All Example Sentences for perjury

Word History

First Known Use

14th century, in the meaning defined above

Time Traveler
The first known use of perjury was in the 14th century

Browse Nearby Words

Cite this Entry

“Perjury.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/perjury. Accessed 12 Mar. 2025.

Kids Definition

perjury

noun
per·​ju·​ry ˈpərj-(ə-)rē How to pronounce perjury (audio)
plural perjuries
: the act or crime of swearing to what one knows is untrue

Legal Definition

perjury

noun
per·​ju·​ry ˈpər-jə-rē How to pronounce perjury (audio)
plural perjuries
: the act or crime of knowingly making a false statement (as about a material matter) while under oath or bound by an affirmation or other officially prescribed declaration that what one says, writes, or claims is true compare false swearing
Etymology

Anglo-French perjurie, parjurie, from Latin perjurium, from perjurus deliberately giving false testimony, from per- detrimental to + jur-, jus law

More from Merriam-Webster on perjury

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!