pseudonym

noun

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

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Pseudonym has its origins in the Greek adjective pseudōnymos, which means “bearing a false name.” French speakers adopted the Greek word as the noun 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.

Synonyms of 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.
The tip was submitted under the pseudonym ‘Tailor’ with the subject line ‘Loverrrrrr’, the name of Swift’s seventh studio album, released in 2019. Lizzie Lanuza, StyleCaster, 11 Dec. 2025 The lawsuit was filed in the District Court of Bell County under the pseudonym Jane Doe to protect the accuser's identity. Kiki Intarasuwan, CBS News, 10 Dec. 2025 Lafferty’s book The Zodiac Killer Cover-Up posits the theory that Andrew Todd Walker, an pseudonym, was the killer, not Arthur Leigh Allen, who went to school with Lafferty. Peter White, Deadline, 24 Nov. 2025 Ghandour’s aunt, a midwife whose home becomes a refuge, and Natalie, also known by the pseudonym Leila, whose journey through shelters and family violence reveals the human cost of Iraq’s legal vacuum where women are concerned. Essie Assibu, Variety, 22 Nov. 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 19 Dec. 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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