- secret information;《口》 a tip-off; a tip
密告する inform ((against, on));《口》 tip off ((about, that))
- 匿名で彼がここにいると密告があった
- We received 「anonymous information [an anonymous tip] that he was here.
- 誰かが警察に私のことを密告した
- Somebody informed the police against [on] me./Somebody tipped off the police about me.
- 密告者an informer; a betrayer