pseudonym

noun

pseu·​do·​nym ˈsü-də-ˌnim How to pronounce pseudonym (audio)
: a fictitious name
especially : pen name

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Pseudonym, has its origins in the Greek word pseudōnymos, which means "bearing a false name." Greek speakers formed their word by combining pseud-, meaning "false," and onyma, meaning "name." French speakers adopted the Greek word as pseudonyme, and English speakers later modified the French word into pseudonym. Many celebrated authors have used pseudonyms. Samuel Clemens wrote under the pseudonym "Mark Twain," Charles Lutwidge Dodgson assumed the pseudonym "Lewis Carroll," and Mary Ann Evans used "George Eliot" as her pseudonym.

Examples of pseudonym in a Sentence

Mark Twain is the pseudonym of the American writer Samuel L. Clemens. the most notorious serial killer of the 19th century remains known only by the pseudonym of Jack the Ripper
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.
This stands in contrast to many of the investment claims on social media, where people regularly post fake or falsified information under pseudonyms. Jeff John Roberts, Fortune, 10 Sep. 2025 This is a pseudonym for a woman who lost her job as a tutor during the Covid-19 pandemic, and then was recruited to work in a customer service job in Thailand. Christine Ro, Forbes.com, 8 Sep. 2025 The novel, written when King was just 19 years old, was the author’s first, although it wasn’t published until 1979 under his pseudonym Richard Bachman. Frank Scheck, HollywoodReporter, 5 Sep. 2025 In December 2023, a new suit was filed by plaintiffs Jane Doe, a Kentucky woman using a pseudonym to conceal her identity, Planned Parenthood and the ACLU, against the Office of the Commonwealth's Attorney. Marina Johnson, Louisville Courier Journal, 2 Sep. 2025 See All Example Sentences for pseudonym

Word History

Etymology

French pseudonyme, from Greek pseudōnymos bearing a false name, from pseud- + onyma name — more at name

First Known Use

1817, in the meaning defined above

Time Traveler
The first known use of pseudonym was in 1817

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Cite this Entry

“Pseudonym.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pseudonym. Accessed 15 Sep. 2025.

Kids Definition

pseudonym

noun
pseud·​onym
ˈsüd-ᵊn-ˌim
: a fictitious name
especially : pen name

More from Merriam-Webster on pseudonym

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