Known meaning

nōn
Recognized, proven, etc.

A known expert, a known theory.

adjective
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A known person or thing.
noun
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Identified as a specific type; renowned, famous.
adjective
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adjective
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Past participle of know.
verb
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In algebra, a variable or constant whose value is already determined.
noun
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Any fact or situation which is well-researched or familiar.
noun
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The definition of known is something of which people are aware.

An example of known used as an adjective is in the phrase, "AIDS known causes," which means the causes of AIDS of which people know.

adjective
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Proved or generally recognized.

The only known case; a known authority.

adjective
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Something that is known.

In this instance, the only known is our actual profit margin.

noun
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verb
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Within one's knowledge, understanding, etc.; familiar.
adjective
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Origin of known

From the Middle English, from Old English past participle cnāwen.