Merriam-Webster's Word of the Day

Merriam-Webster's Word of the Day for June 10, 2026 is:





foible • \FOY-bul\ • noun

Foibles are minor flaws or shortcomings in someone's character or behavior. In fencing, foible refers to the weakest part of a sword's blade, between the middle and point.

// You have to be able to laugh at your own foibles.

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Examples:

"The British sketch comedy troupe Monty Python loved taking aim at contemporary foibles through its twisted and liberal reading of history." — David Faris, The Week, 29 Apr. 2026





Did you know?

Many word lovers agree that the pen is mightier than the sword. But be they honed in wit or form, even the sharpest tools in the shed have their flaws. That’s where foible comes in handy. Borrowed from French in the 1600s, the word originally referred to the weakest part of a fencing sword, that part being the portion between the middle and the pointed tip. The English foible soon came to be applied not only to weaknesses in blades but also to minor failings in character. Foible ultimately traces back to the Old French term feble, which is also the source of our English adjective feeble.

Merriam-Webster's Word of the Day for June 9, 2026 is:





deleterious • \del-uh-TEER-ee-us\ • adjective

Deleterious is a word used in formal speech and writing to describe something that is damaging or harmful, usually in a subtle or unexpected way.

// Though effective at keeping pests away from plants, the spray is no longer used because of its deleterious effects on the respiratory system.

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Examples:

“Canceling email addresses used by alumni over many years could have deleterious consequences for professional networking, which will become increasingly important as the AI roll-out accelerates and disrupts careers for thousands of college graduates.” — William Golz, NOLA.com (New Orleans, Louisiana), 15 Apr. 2026





Did you know?

When you hold down the delete key on your keyboard or touchscreen, the effect—whoosh!—is instantaneous. Deleterious effects, however, are often not so obvious; deleterious (ultimately from a Greek word meaning “to hurt”) is used to describe things that are harmful in ways that are unexpected, slow-acting, or not readily apparent. Although most often used in formal speech and writing, deleterious is far from rare. It even pops up from time to time in film and television, especially from the mouths of wonky characters, as when Seven of Nine warns the Doctor in an episode of Star Trek Voyager, “The nebula is having a deleterious effect on all the ship’s technology,” or when Higgins exclaims in the original Magnum P.I. series, “It’s shocking what a deleterious effect a regimen of nothing but mushrooms can have on a man.” We’ll take your word for it, Higgins.

Merriam-Webster's Word of the Day for June 8, 2026 is:





accoutrement • \uh-KOO-truh-munt\ • noun

An accoutrement is a piece of clothing or equipment that is used in a particular place or for a particular activity. In military contexts, accoutrement refers specifically to a soldier's outfit. The word can also refer to an identifying and often superficial characteristic or device. Accoutrement in any of its uses is often pluralized.

// They have all the accoutrements that a baker could ever want, including a robust collection of cookie cutters and a veritable wardrobe of vintage aprons.

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Examples:

"From the spectacularly colorful Parade of Flags ... to the customary dress and cultural accoutrements of the nations, we see just how rich, varied and wonderful are the backgrounds of these students who have traveled far to study among us." – The Commercial Dispatch (Columbus, Mississippi), 14 Apr. 2026





Did you know?

Accoutrement and its rarer relative accoutre, a verb meaning "to provide with equipment or furnishings" or "to outfit," have been appearing in English texts since the 16th century. Today both words have variant spellings—accouterment and accouter, respectively. The pair's French ancestor, accoutrer, descends from an Old French word meaning "to put in place" and may ultimately trace back to the Latin word consuere, meaning "to sew together." Some etymological stitching is visible in another English word: couture, a word referring to the business of making fashionable clothes, as well as to the clothes themselves, is a direct French borrowing that ultimately descends from consuere.

Merriam-Webster's Word of the Day for June 7, 2026 is:





MacGyver • \muh-GHYE-ver\ • verb

To MacGyver something is to make, form, or repair it with materials that are conveniently on hand.

// Social media websites are full of videos that show people MacGyvering everything from a life jacket out of a pair of pants to a stove using three metal cans and some dirt.

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Examples:

“Maybe your shovel broke the first time you tried to clear wet, heavy snow off your sidewalk and you never replaced it. ... Of course, before you start MacGyvering a shovel from spare parts in your garage, you can ask a neighbor for assistance or make a few phone calls and pay for a service to clear your driveway or sidewalks.” — Caroline Anschutz, SlashGear.com, 28 Jan. 2026





Did you know?

Angus MacGyver, as portrayed by actor Richard Dean Anderson in the titular, action-packed television series MacGyver, was many things—including a secret agent, a Swiss Army knife enthusiast, and a convert to vegetarianism—but he was no MacGuffin (a character that keeps the plot in motion despite lacking intrinsic importance). In fact, so memorable was this man, his mullet, and his ability to use whatever was available to him—often simple things, such as a paper clip, chewing gum, or a rubber band—to escape a sticky situation or to make a device to help him complete a mission, that people began associating his name with making quick fixes or finding innovative solutions to immediate problems. Hence the verb MacGyver, a slang term meaning to “make, form, or repair (something) with what is conveniently on hand.” After years of steadily increasing and increasingly varied usage following the show’s run from 1985 to 1992 (tracked in some detail here), MacGyver was added to our online dictionary in 2022.

Merriam-Webster's Word of the Day for June 6, 2026 is:





valedictory • \val-uh-DIK-tuh-ree\ • adjective

Valedictory describes something expressing or containing a farewell.

// The valedictory speech given by the department chair moved several faculty members to tears.

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Examples:

“Did I regret not catching a retrospective showing of ‘Little Miss Sunshine,’ in a special valedictory program of Sundance sensations from over the years? Perhaps—though not as much as I regretted missing the screening of Ryan Fleck and Anna Boden’s ‘Half Nelson’ (2006). That’s the title that I remember most fondly from my first year at Sundance ...” — Justin Chang, The New Yorker, 31 Jan. 2026





Did you know?

Valedictory addresses delivered by valedictorians at high school and college graduations are as much a sign of spring in the United States as baseball games and cookouts. Though we don’t know where the first valedictory address was given, we do know that such addresses were an institution at some colleges in the U.S. by the time Noah Webster wrote his famous 1828 dictionary. (We also know that valedictory was used in non-academic settings—mostly churches, and especially in the phrase “valedictory sermon”—from the mid-1600s.) Since a valedictory speech is given at the end of an academic career, it is perfectly in keeping with the meaning of its Latin ancestor, valedīcere, which means “to say goodbye.”