noun, noun or participle which takes 'suru', transitive verb, intransitive verb, noun which may take the genitive case particle 'no'
common knowledge; well-known; making widely known
Used for information, facts, or rules that are widely known or for the act of disseminating them. Often appears in formal or public contexts, such as 周知の事実 (well-known fact) or 周知徹底 (thorough dissemination).
その問題は周知の事実だ。
That problem is a well-known fact.
We need to make the new rules known throughout the company.