plural of known known

Certainties of known magnitude, consequence, structure, and probability characteristics; something that we know that we know.

Identified as a specific type; famous, renowned. / Accepted, familiar, researched.

Any fact or situation which is known or familiar. / (algebra) A constant or variable the value of which is already determined.

past participle of know

plural of known

Obsolete spelling of known

The condition of being known.

past participle of know of

(formal) To ensure that others are aware, even if not telling them directly.