well-known
Americanadjective
-
clearly or fully known.
The well-known reasons are obvious.
-
generally or widely known.
a well-known painting.
- Synonyms:
- celebrated, noted, famous, prominent
adjective
-
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.
The risks that FTI failures posed to the FAA’s air-traffic system are well-known.
From The Wall Street Journal ● Nov. 15, 2026
"I see a situation in which there could be a prolonged war in Tigray," Yared Tibebu, a well-known Ethiopian commentator based in the US, tells the BBC.
From BBC ● Nov. 13, 2026
No other Nvidia executive is well-known to investors, or likely be able to as aggressively push the AI boom with creative Nvidia-backed financing arrangements.
From MarketWatch ● Nov. 12, 2026
The key to understanding this discovery lies in a well-known phenomenon called magnetic reconnection.
From Science Daily ● Nov. 8, 2026
The most well-known cumulative song is “The Twelve Days of Christmas,” but there are many others.
From "Music and the Child" by Natalie Sarrazin
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Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
