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Definitions

common knowledge



NOUN
open secret
Synonyms


Example Sentences

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“It’s common knowledge now among anybody,” said Art Westerinen, 64, the family historian and one of Dorothy’s three brothers.

From Salon ● Jul. 27, 2026

She said people should be discussing menstruation from an early age so it's common knowledge that "periods which stop your day-to-day functioning" are not normal.

From BBC ● May 20, 2026

“It’s another piece of the puzzle that tells you the AI theme is common knowledge and thus it’s hard to understand how there could be alpha remaining in something like long Nvidia.”

From MarketWatch ● Dec. 11, 2025

It’s common knowledge that humidity exacerbates the experience of heat.

From Slate ● Jun. 25, 2025

In a field report, an agent from the bureau observed, “It is a matter of common knowledge that Rose...was of a violent and jealous disposition.”

From "Killers of the Flower Moon" by David Grann


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