well-known
Americanadjective
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clearly or fully known.
The well-known reasons are obvious.
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generally or widely known.
a well-known painting.
- Synonyms:
- celebrated, noted, famous, prominent
adjective
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widely known; famous; celebrated
-
known fully or clearly
Etymology
Origin of well-known
late Middle English word dating back to 1425–75
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Researchers led by Suketu Patel put several leading AI models through a well-known psychology experiment called the Stroop task.
From Science Daily • Jun. 10, 2026
Nestlé is exploring selling well-known brands, including sparkling-water company San Pellegrino and the rest of its stake in ice cream maker Häagen-Dazs.
From Barron's • Jun. 10, 2026
Stocks’ performance during the 2022 World Cup is just one data point, but it’s consistent with the historical record, according to a well-known study that analyzed how sports sentiment impacts the stock market.
From MarketWatch • Jun. 9, 2026
Anywhere, which owned well-known brokerage brands such as Century 21, Sotheby’s and Coldwell Banker, was the second-biggest.
From The Wall Street Journal • Jun. 3, 2026
His popular ghost, along with that of other well-known Americans like Thomas Paine and George Washington, regularly appeared at séances for years to come.
From "American Spirits" by Barb Rosenstock
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
