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misnomer

American  
[mis-noh-mer] / mɪsˈnoʊ mər /

noun

misnomers plural
  1. a misapplied or inappropriate name or designation.

  2. an error in naming a person or thing.


misnomer British  
/ ˌmɪsˈnəʊmə /

noun

  1. an incorrect or unsuitable name or term for a person or thing

  2. the act of referring to a person by the wrong name

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Commonly Confused

Misnomer is not a fancy, more elevated word for mistake. Nor is it a synonym for misstatement, misconception, or misunderstanding. As the word's Latin etymon nōmināre (“to name”) tells us, a misnomer is a special kind of mistake: a wrong name. The consequences of a mistake can range from trivial to catastrophic—from typos to train wrecks. But a misnomer is often just embarrassing, like trying to impress a friend by referring to a Burgundy wine as a “Bordeaux.” Sometimes, however, what began as a misnomer has become a standard term: the game of Chinese checkers does not come from China; the funny bone is a nerve, not a bone; hay fever is not caused by hay and is not a fever; and a pregnant woman's morning sickness can occur at any time of day. Other kinds of mistakes or misunderstandings—giving a driver wrong directions, thinking that the earth is flat, drawing an erroneous conclusion—are not misnomers. In fact, the word misnomer when used to describe a behavioral mistake or a misperception of reality is itself a misnomer!

Other Word Forms

Noun Inflected Forms

Etymology

Origin of misnomer

First recorded in 1425–75; late Middle English, from Anglo-French, noun use of Middle French mesnomer “to misname,” equivalent to mes- negating prefix + nomer “to name, call by name,” from Latin nōmināre; see mis- 1, nominate

Explanation

A misnomer is a wrong or unsuitable name. It’s a misnomer to call your grandmother “Grandfather,” the same way it’s a misnomer to call a chair with four legs that doesn’t move unless you drag it across the floor, a rocking chair. From the Middle-French misnomer “to misname” evolved our English misnomer, a noun indicating a lack of fit when it comes to naming. Synonyms include, predictably, misnamed, but also mistermed and miscalled. You’ll notice the repetition of the mis- at the front of all those words. It comes from the French mes-, which means “wrongly.”

Keep Reading on Vocabulary.com

Vocabulary lists containing misnomer

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Colin Clark, the director of the Soufan Center, a nonprofit that focuses on foreign policy and terrorism, pointed out in an interview with PBS that the term “narco-terrorism” is a misnomer.

From Salon Jul. 12, 2026

Empire's John Nugent, external said Johnson's character "feels like an AI interpretation", and to call the film "live action feels like a misnomer" because of the heavy use of animation.

From BBC Jul. 10, 2026

To someone who pointed out that “Barstow street taco” is a misnomer, Hilton shot back, “It’s what they call it!”

From Los Angeles Times May 13, 2026

Calling Vanguard Wellington a 60/40 fund is inevitable, but also something of a misnomer.

From Barron's Apr. 3, 2026

Though a misnomer, his nickname proved to be the one enduring thing about Pollard’s ring career.

From "Seabiscuit: An American Legend" by Laura Hillenbrand

To promote the university’s core mission, the school must clarify its role on campus and challenge misnomers.

From The Wall Street Journal May 17, 2026

Fire departments operated and financed by local governments increasingly have become misnomers.

From Washington Times Apr. 19, 2021

The terms “rose fever” for summer allergies and “hay fever” for autumn are also both misnomers.

From Slate May 5, 2015

“There’s been a lot of misnomers about these craft as covert spy tools. ‘Drone’ has become a negative term.

From The Guardian Oct. 1, 2014

After it was drafted, Laura typed it up while Yoyo stood by, correcting her mother's misnomers and mis-sayings.

From "How the García Girls Lost Their Accents" by Julia Alvarez

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