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to become known; to come to light; to be discovered
to be known; to be understood
to clearly not amount to much; to be insignificant
to be evident; to be obvious; to go without saying
to be very intense (of worry, hope, etc.); to be severe
その事実が世間に知れるのは時間の問題だ。
It's only a matter of time before that fact becomes known to the public.
彼の才能は広く知れ渡っている。
His talent is widely known.
秘密が知れたら大変なことになる。
If the secret becomes known, there will be serious trouble.