Pronunciation: /noʊn noʊn/
noun a person or thing that is recognized or familiar
A1 In the storybook, the known known was the treasure hidden in the cave.
A2 The teacher explained that a known known is a fact that everyone is aware of.
B1 The company's reputation as a leader in innovation is a well-known known in the industry.
B2 The scientist's theory challenged the known knowns in the field of physics.
C1 The detective was determined to uncover the unknown knowns in the case.
C2 The philosopher questioned the nature of known knowns and their impact on human understanding.
adjective acknowledged or familiar
A1 The known known fact is that the earth is round.
A2 She only trusts information from known known sources.
B1 The company's reputation is based on its known known quality products.
B2 The scientist's theory is a well-known known known in the field of physics.
C1 The government's decision was influenced by a known known expert in the field.
C2 The artist's style is a known known among art enthusiasts.
formal The concept of a known known refers to information that is already known and acknowledged.
informal It's like when you already know something and everyone else knows it too.
slang When it's a known known, there's no point in trying to hide it.
figurative In a world full of unknowns, it's comforting to have a known known to rely on.
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