noun which may take the genitive case particle 'no', noun
known; already known; established
Refers to something that is already known or established, often in contrast to 未知 (unknown). Commonly used in technical or formal contexts.
Antonyms: 未知
Judge based on known facts.
This issue is a known bug.
unknown; not yet known; strange
既知 describes something already known, the opposite of 初耳, which marks information as being heard for the first time.
known quantity
Compound of 既 (already) and 知 (know).