Merriam-Webster's Word of the Day

Merriam-Webster's Word of the Day for May 31, 2026 is:





permutation • \per-myoo-TAY-shun\ • noun

Permutation is a formal word for any one of the many different ways or forms in which something exists or can be arranged. It can also refer to a major or fundamental change in something based primarily on rearrangement of its existing elements. Permutation is usually used in its plural form.

// Early permutations of the design look nothing like the final result.

// The system has gone through several permutations.

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Examples:

“Megadeth have weathered nearly all of metal’s generational permutations, only once deviating from their ... formula with 1999’s infamously confused country’n’industrial mish-mash, Risk.” — Eli Enis, Pitchfork, 26 Jan. 2026





Did you know?

“Ch-ch-changes!” David Bowie sang memorably in his classic (and appropriately titled) hit “Changes,” which concerns the phenomenon of artistic reinvention—something Bowie knew a lot about. In fact, he could have titled the song “Permutations,” though we admit that the word would have been a bit clunkier to sing. Permutation is, after all, all about change—specifically change (as in character or condition) of something based primarily on rearrangement of its existing elements. For example, Bowie’s artistic persona went through many permutations over the course of his career, from the alien rock star Ziggy Stardust to the aristocratic Thin White Duke, with the common denominator—the existing elements—being Bowie himself. (Permutation can also be used for a form or variety resulting from such changes, and can thus refer to Bowie’s individual personae as well.) Permutation, perhaps ironically, has not changed all that much since it was borrowed into Middle English from Anglo-French as permutacioun.

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





unctuous • \UNK-chuh-wus\ • adjective

Unctuous is a word that’s undergone change in recent years. It now often describes food that is fatty and oily, especially in a pleasing way. Formerly it was more typically applied as a formal adjective describing someone who is figuratively oily—that is, overly or insincerely flattering. Both uses can be found today.

// Braising chicken thighs with their skins on creates a rich, unctuous sauce that can be spooned back over the finished dish.

// The mayor’s unctuous assistant was making the rounds at the fundraiser, chatting up those known to have the biggest bank accounts.

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Examples:

“The thinly sliced pork belly is shaved into curlicues and cooks up super quickly and crisply, so it’s great for an impatient group or as a first round. Thick slices are more akin to what you’d find at Korean BBQ restaurants nowadays; they’ll cook and sizzle in their own fat … resulting in juicy, unctuous bites.” — Irene Yoo, Soju Party: How to Drink (and Eat!) Like a Korean, 2025





Did you know?

Unctuous is a slippery word in multiple ways. Its ultimate source is a Latin word meaning “to anoint; to smear or rub with oil or an oily substance,” and this oily character was key to the word’s meaning when it first appeared in the 14th century, as when John Trevisa wrote “Þe fruit of olyue is ful of liȝt, likynge, and vnctuous” (in modern English: “the olive fruit is bright, delicious, and unctuous”). Unctuous here means “fatty” or “oily,” as did its immediate Medieval Latin predecessor unctuosus. This same use of unctuous is quite prominent today, as the word often describes deliciously fatty foods and the sensation of such foods on the palate (as in “an unctuous mouthfeel”). But come across unctuous in literature of the 19th or 20th century and you’re more likely to see a less pleasant application, with the word describing a person or behavior that is figuratively oily—that is, overly or insincerely flattering.

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





cohort • \KOH-hort\ • noun

Cohort refers to a group or band of individuals, as in “a cohort of supporters.” It can also be used for a group of individuals who have a statistical factor (such as age) in common in a demographic study, as in “a cohort of people born in the 1980s.” Cohort can be used for individuals too, as for a friend, companion, or colleague, but it is almost always used in its plural form.

// I wouldn’t have made it through graduate school without the help of my supportive cohort.

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Examples:

“By the time Rosie emerged ... for her afternoon meet-and-greet, the line of guests eager to hold the famed tarantula had already wrapped around the room and into the hallway. ... Tarantulas need to be at least 10 years old to be handled, so rearing a new cohort of Rosies could take up to a decade.” — Laura Penington, The Denver Post, 18 Aug. 2025





Did you know?

In ancient times, a cohort was a military unit, one of ten divisions in a Roman legion. The term passed into English in the 15th century, when it was used in translations and writings about Roman history. Once cohort became established in our language, its meaning was extended, first to refer to any body of troops, then to any group of individuals with something in common (as in “a cohort of law students” or “a cohort of people who were born in the same year”), and later to a single companion. Some writers on usage have objected to this last sense because it can be hard to tell whether the plural refers to different individuals or different groups. The “companion” sense is well established in standard use, however, and its meaning is clear enough in such sentences as “her cohorts came along with her to the game.”

Merriam-Webster's Word of the Day for May 28, 2026 is:





ingratiate • \in-GRAY-shee-ayt\ • verb

To ingratiate yourself with others is to gain their favor or approval by deliberately doing or saying things they will like. Ingratiate is usually used with with, and is often (though not always) used disapprovingly.

// Scam artists often have an uncanny ability to ingratiate themselves with their victims using subtle flattery that only seems obvious in retrospect.

// Although she was nervous to be the new girl in school, Emma quickly ingratiated herself with her classmates through her effortless charm and kind demeanor.

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Examples:

“In ever greater numbers, Elizabeth’s subjects flocked north to ingratiate themselves with the Queen’s likely successor.” — Tracy Borman, The Stolen Crown: Treachery, Deceit, and the Death of the Tudor Dynasty, 2025





Did you know?

When you ingratiate yourself, you put yourself in someone’s good graces in order to gain their approval or favor. While the word ingratiate does not necessarily imply that your behavior is obsequious or otherwise improper, the word may be used disapprovingly by those who distrust your motives. The word entered English in the early 1600s from the combining of the Latin noun gratia, meaning “grace” or “favor,” with the English prefix in-. Gratia comes from the adjective gratus, meaning “pleasing, grateful.” Gratus has, over the centuries, ingratiated itself well with the English language as the ancestor of a whole host of words including gratuitous, congratulate, and grace.

Merriam-Webster's Word of the Day for May 27, 2026 is:





benevolent • \buh-NEV-uh-lunt\ • adjective

Benevolent can describe someone or something that is kind and generous or something that is organized for the purpose of doing good.

// The event's reception was courtesy of a benevolent donor who's chosen to remain anonymous.

// They belong to several benevolent societies and charitable organizations.

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Examples:

"The Community Service Award is presented at the local, state and national levels to individuals and groups who have made outstanding voluntary, civil, heroic or benevolent contributions to their communities." — Devin Weeks, The Coeur d'Alene (Idaho) Press, 24 Dec. 2025





Did you know?

One who is benevolent genuinely wishes other people well, a meaning reflected clearly in the word's Latin roots: benevolent comes from bene, meaning "good," and velle, meaning "to wish." Other descendants of velle in English include volition, which refers to the power to make one's own choices or decisions, and voluntary, as well as the rare velleity, meaning either "the lowest degree of volition" or "a slight wish or tendency." A more familiar velle descendant stands directly opposed to benevolent: malevolent describes someone or something having or showing a desire to cause harm to another person.