Merriam-Webster's Word of the Day for November 17, 2025 is:
crucible • \KROO-suh-bul\ • noun
A crucible, in the word’s literal use, is a pot in which metals or other substances are heated to a very high temperature or melted. But crucible is more often encountered in figurative use referring to a difficult test or challenge, or to a place or situation that forces people to change or make difficult decisions.
// The bronze was heated to 2,100 degrees in the crucible and then poured into molds designed by the artist.
// Her latest novel follows two best friends in a fantastical, battle-ravaged kingdom who emerge from the crucible of war with opposing views and values on what should come next.
Examples:
“... the original film follows four married couples—close friends who reunite once a year for a weeklong vacation together. On the surface, the retreat is meant to help them relax and reconnect, but it quickly becomes a crucible for examining the cracks in their relationships.” — Matt Grobar, Deadline, 1 Oct. 2025
Did you know?
Unless you’re studying Arthur Miller’s The Crucible in school, it may not be crucial to learn the story behind crucible, but it can’t hurt! Crucible looks like it should be closely related to the Latin combining form cruc- (“cross”); however, unlike crucial, it isn’t. It was forged instead from the Medieval Latin crucibulum, a noun for an earthen pot used to melt metals, and in English it first referred to a vessel made of a very heat-resistant material (such as porcelain) used for melting a substance that requires a high degree of heat. It’s possible that the resemblance between cruc- and crucible encouraged people to start using crucible to mean “a severe trial,” as that sense is synonymous with one meaning of cross, but the idea of simmering in a literal crucible also sounds plenty severe. The newest sense of crucible (“a situation in which great changes take place,” as in “forged in the crucible of war”) recalls the fire and heat required to transform some solids into liquids.
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