Merriam-Webster's Word of the Day

Merriam-Webster's Word of the Day for January 20, 2026 is:





quiddity • \KWID-uh-tee\ • noun

Quiddity refers to the essence of a thing—that is, whatever makes something the type of thing that it is. Quiddity can also refer to a small and usually trivial complaint or criticism, or to a quirk or eccentricity in someone's behavior.

// The novelist’s genius was her unparalleled ability to capture the quiddity of the Maine seacoast in simple prose.

// He portrayed the character's quirks and quiddities with tender playfulness.

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Examples:

“When I was gathering my odes into a book—or rather, piling up my effusions in prose and verse and trying to work out which ones were odes and which weren’t—my friend Carlo gave me a magical concept. He called it ‘the odeness.’ It’s the essential quality, quiddity, … uniqueness of whatever you’re trying to write about. It’s what your ode is attempting to first identify and then celebrate. It’s the odeness of your ode.” — James Parker, The Atlantic, 30 Sept. 2025





Did you know?

When it comes to synonyms of quiddity, the Q’s have it. Consider quintessence, a synonym of the “essence of a thing” meaning of quiddity, and quibble, a synonym of the “trifling point” use. And let’s not forget about quirk: like quiddity, quirk can refer to a person’s eccentricities. Of course, quiddity also comes from a “Q” word, the Latin pronoun quis, which is one of two Latin words for “who” (the other is qui). Quid, the neuter form of quis, led to the Medieval Latin quidditas, which means “essence,” a term that was essential to the development of the English word quiddity.

Merriam-Webster's Word of the Day for January 19, 2026 is:





ephemeral • \ih-FEM-uh-rul\ • adjective

Something described as ephemeral lasts only for a very short time.

// The performance was not recorded, a fact that made its ephemeral nature all the more poignant.

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Examples:

"Like most garden moments, fresh holiday wreaths are ephemeral. Having accomplished their purpose of seeing us through the darkest days of winter, removing this traditional symbol of the wheeling seasons is a way to recognize the birth of a new year and celebrate the returning light." — Lorene Edwards Forkner, The Seattle Times, 16 Nov. 2025





Did you know?

In its aquatic immature stages, the mayfly (order Ephemeroptera) has all the time in the world—or not quite: among the approximately 2,500 species of mayflies, some have as much as two years, but a year is more common. But in its adult phase, the typical mayfly hatches, takes wing for the first time, mates, and dies within the span of a few short hours. This briefest of heydays makes the insect a potent symbol of life's ephemeral nature. When ephemeral (from the Greek word ephēmeros, meaning "lasting a day") first appeared in print in English in the late 16th century, it was a scientific term applied to short-term fevers, and later, to organisms (such as insects and flowers) with very short life spans. Soon after that, it acquired an extended sense describing anything fleeting and short-lived, as in "ephemeral pleasures."

Merriam-Webster's Word of the Day for January 18, 2026 is:





elicit • \ih-LISS-it\ • verb

Elicit is a formal word meaning “to get (a response, information, etc.) from someone.”

// The announcement of the final amount raised by the charity walk elicited cheers from the crowd.

// The teacher’s question elicited no response.

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Examples:

“By the end of the ceremony, the attendees knew where each soon-to-be graduate would be studying next. The students lined up and stormed the stage, screaming their names and their postsecondary destinations while hoisting flags from the institutions in the air. ... Each proud declaration elicited raucous clapping and hooting from the crowd.” — Elizabeth Hernandez, The Denver Post, 15 May 2025





Did you know?

Say them fast—or even slow—in isolation, and no one will know which one you mean: elicit and illicit both rhyme with the likes of explicit and complicit. But beyond being auditorily indistinguishable, they are used very differently. Illicit is an adjective applied to no-nos. It’s used to describe things people aren’t supposed to do. Something illicit is not permitted especially because it is illegal. Elicit, on the other hand, is a verb most often used to talk about calling forth or drawing out a response or reaction from someone, as in “her onstage antics elicited roars of laughter from the audience.” The Latin ancestors of this pair are easy to confuse too. Elicit comes from elicitus, illicit from illicitus. But going back just a little further, we find that elicit traces back beyond elicitus to lacere, meaning “to allure,” while illicitus comes ultimately from licēre, meaning “to be permitted.”

Merriam-Webster's Word of the Day for January 17, 2026 is:





notorious • \noh-TOR-ee-us\ • adjective

Notorious describes people and things that are well-known or famous, especially for something bad or unfavorable.

// Their city is notorious for its extremely hot and humid summers.

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Examples:

“Given Long Island’s cul-de-sac geography and notorious traffic, proposed bridges and tunnels to Connecticut are bound to get attention on the Island.” — Peter Gill, Newsday, 8 Dec. 2025





Did you know?

For those who don’t give a fig about a bad reputation, being notorious for unpopular behavior is no biggie. (Being notorious for topping the Billboard charts? Now that’s a Biggie.) Although notorious (which comes from Latin noscere, “to come to know”) can be a synonym of famous, it’s more often a synonym of infamous, having long ago developed the additional implication of someone or something disreputable. The Book of Common Prayer of 1549 includes one of the first known uses of the unfavorable meaning in print, referring to “notorious synners.” You know what they say: more notorious synners, more problems.

Merriam-Webster's Word of the Day for January 16, 2026 is:





vendetta • \ven-DET-uh\ • noun

Vendetta refers to an active and mutual hatred between two families or groups, also known as a blood feud. It can also refer to an often prolonged series of retaliatory, vengeful, or hostile acts, or to a commitment to carrying out such acts.

// The student insisted that the principal had a personal vendetta against her.

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Examples:

"Rita publicly refused a vendetta at his funeral. She wouldn't ask her sons to avenge him, even though that wasn't just normal for the time, it was expected." — Rita Halász, Deep Breath: A Novel (translated by Kris Herbert), 2025





Did you know?

English speakers borrowed vendetta, spelling and all, from Italian in the 19th century; literally meaning "revenge," vendetta first referred specifically to Italian and especially Corsican family- or clan-based feuds. It later extended in meaning to cover the acts that tend to feature in such feuds, and later still expanded further to refer to a commitment to carrying out such acts. Vendetta ultimately traces to the Latin verb vindicta, meaning "revenge" or "vindication." That Latin word is also in the family tree of other English terms related to getting even, including avenge, revenge, vengeance, vindicate, and vindictive.