Merriam-Webster's Word of the Day

Merriam-Webster's Word of the Day for October 3, 2026 is:





tittle • \TITT-ul\ • noun

Used chiefly in British English, tittle refers to a very small part or amount; it is often paired with the word jot. In writing and printing on both sides of the pond, tittle also refers to a point or small sign used as a diacritical mark.

// There is not a jot or tittle of evidence to support their claims.

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Examples:

"First-class engineering allows the listener to savour every sonic jot and tittle." — Clive Paget, The Guardian (London), 13 Feb. 2026





Did you know?

When most of us dot our i's and cross our t's, our minds are with the words we are writing rather than the anatomy of the letters we employ. But those dots and crosses? The types who love type have names for them. The mark that sits above the lowercase i (as well as j) is known as a "tittle". Tittle comes from the Medieval Latin noun titulus, meaning "title," and has also been used over the centuries for diacritical marks including tildes, as well as any small mark or sign in writing or printing—hence the figurative use of tittle to refer to a very small part of something. For those curious about additional letter components, stroke refers to one of the lines that form a letter, including the horizontal lines that mark the lowercase letters t and f (which may be described more specifically as a "cross strokes"). Typographers even have a word for the negative space enclosed by strokes, such as the hole in the letter o: it's known as a “counter.”

Merriam-Webster's Word of the Day for October 2, 2026 is:





heterodox • \HET-uh-ruh-dahks\ • adjective

Like both unorthodox and unconventional, heterodox describes something, such an idea or belief, that is contrary to or different from an acknowledged standard, a traditional form, or an established religion. Heterodox can also describe a person or group that holds unorthodox opinions or doctrines.

// The two new faculty members' heterodox approach to teaching science initially met with some resistance from their peers.

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Examples:

“The result is what researchers call the ‘spiral of silence’ (Noelle-Neumann, 1974), which describes the process by which dissenters go quiet, fearing social backlash; this, in turn, makes other dissenters feel even more alone, producing a false consensus that further suppresses dissent. The group appears unanimous, and everyone with a heterodox view assumes they’re the only one.” — The Open Therapy Institute, Psychology Today, 22 June 2026





Did you know?

Hot take: individuals often see other people’s ideas as unconventional while regarding their own as common sense. On second thought, this take may be more on the mild side—in other words, closer to orthodox (“conventional”) insight about human nature than to heterodox (“unconventional” or “contrary”) opinion. Both orthodox and heterodox developed from the same root, the Greek doxa, meaning “opinion.” Heterodox combines doxa with heter-, a combining form meaning “other” or “different”; orthodox pairs doxa with orth-, meaning “correct” or “straight.”

Merriam-Webster's Word of the Day for October 1, 2026 is:





slew • \SLOO\ • noun

Slew is an informal word for a large number of people or things.

// The pile of junk mail included a slew of catalogs.

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Examples:

“The nonalcoholic drinks category has expanded so much in recent years that it’s not uncommon to find a list of thoughtful, complex nonalcoholic beverages on a bar or restaurant’s cocktail menu—yes, even outside of the major cities. And it’s even easier to enjoy alcohol-free beverages at home thanks to a slew of brands making really good alcohol alternatives that you can order online and have delivered directly to your door.” — Carina Finn and Emily Farris, Bon Appétit, 31 Dec. 2025





Did you know?

Slew appeared as an American colloquialism in the early 19th century. Its origins are unclear, but it may have come from the Irish word slua, a descendant of slúag, an Old Irish word meaning “army,” “host,” or “throng.” Indeed, the earliest known uses of slew appear in a martial context, from a historical novel by Daniel Pierce Thompson about Vermont and the Green Mountain Boys, a militia organized in Vermont during the American Revolution. In one scene, one of the Boys tells leader Ethan Allen that “there’s more than a hundred slew of men coming!” Later, British General Burgoyne is said to have “drawn up a whole slew of cannon.” But despite this early military setting, slew is not limited to troops or artillery; a slew of data shows the word describing nearly anything existing in abundance.

Merriam-Webster's Word of the Day for September 30, 2026 is:





epistemic • \ep-uh-STEE-mik\ • adjective

Epistemic means "of or relating to knowledge or knowing."

// He's a brilliant teacher who has the epistemic humility to know that there is always more to learn.

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Examples:

"Is a novel's primary purpose to entertain or to deepen our experience of being alive—to offer escape or epistemic enrichment?" — Brady Brickner-Wood, New Yorker, 8 July 2026





Did you know?

If you're not in the know about the history of epistemic, allow us to enlighten you. The term's root is the Greek word epistḗmē, meaning "skill, expertise, knowledge,” and specifically “scientific knowledge” (as opposed to practical skill). Epistḗmē in turn comes from the verb epístamai, meaning "to have the skill, to know how, to have knowledge of, to understand." Epístamai itself combines the prefix epi-, meaning "upon" or "attached to," with the verb hístēmi, histánai, meaning "to cause to stand." (Tidbit: histánai is also an ancestor of the English words system, stand, and, of course, understand.) The study of the nature and grounds of knowledge is called epistemology, and one who engages in such study is known as an epistemologist.

Merriam-Webster's Word of the Day for September 29, 2026 is:





argot • \AHR-goh\ • noun

Argot refers to the language or set of words used by a particular group of people.

// The novels were such a success that fans began communicating in the secret argot spoken by the series’ characters.

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Examples:

“[Lenny] Bruce, born Leonard Alfred Schneider on Long Island, quit school at 16 and got his start telling jokes at a Brooklyn nightclub for $12 a week. … He developed his act in ... jazz joints around Southern California in the mid-1950s. He riffed in a Beatnik argot, and his act took on the flavor of improvisational jazz.” — Christopher Goffard, The Los Angeles Times, 16 Aug. 2026





Did you know?

English borrowed argot from French in the early 1800s, although the language already had several words basically covering its meaning. Jargon, the Anglo-French ancestor of which meant “twittering of birds,” had been used for specialized (and often obscure or pretentious) vocabulary since the 1600s. There was also lingo, from the Latin word lingua, meaning “language”; that term had been in use for more than a century. English novelist and lawyer Henry Fielding used it of “court gibberish”—what we tend to call legalese. And speaking of legalese, the suffix -ese is a newer means of indicating specialized argot. One of its very first applications at the turn of the 20th century was for “American ‘golfese.’”