effulgence

光辉

Merriam-Webster's Word of the Day

2026-07-10

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Merriam-Webster's Word of the Day for July 10, 2026 is: effulgence • ih-FULL-junss  • noun Effulgence means “radiant splendor” or “brilliance.” // Guests oohed and aahed at the sudden effulgence of the pagoda, as the last of its hundreds of candles were finally lit. See the entry > Examples: “No one knows who suggested that the building be lit at night. But the obvious inspiration was Times Square, an area famous for its nighttime effulgence.” — Robert Sharoff, FastCompany.com, 7 July 2025 Did you know? Need a shiny word to bust out at your next disco party, planetarium visit, or fireworks gathering? How about effulgence? It’s not a shiny “new” word, having made its English language debut in the 17th century, but it’s unusual and has a lovely Latin pedigree: the verb fulgēre, meaning “to shine.” Effulgence isn’t used for bog-standard brightness, however; it’s reserved for shininess that dazzles, inspires, leaves you gobsmacked—in other words, “radiant splendor.”
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  • It's Merriam-Webster's Word of the Day for July 10th.

  • Today's word is effulgence, spelled E-F-F-U-L-G-E-N-C-E.

  • Effulgence is a noun.

  • It means radiant splendor or brilliance.

  • Here's the word used in a sentence from fastcompany.com.

  • No one knows who suggested that the building be lit at night,

  • but the obvious inspiration was Times Square, an area famous for its nighttime effulgence.

  • Need a shiny word to bust out at your next disco party, planetarium visit, or fireworks gathering?

  • How about the word effulgence?

  • It's not a shiny new word, having made its English language debut in the 1600s,

  • but it's unusual and has a lovely Latin pedigree.

  • The verb fulgare meaning to shine.

  • Effulgence isn't used for bog standard brightness, however.

  • It's reserved for shininess that dazzles, inspires, leaves you gobsmacked.

  • In other words, radiant splendor.

  • With your word of the day, I'm Peter Sokolowski.

  • Visit merriamwebster.com today for definitions, wordplay, and trending word lookups.