密告

密告	mì gào	to report secretly / to tip off
密	Mì	surname Mi / name of an ancient state
密	mì	dense; close; thick / intimate; close / (bound form) secret; confidential / (Internet slang) to send a private message to (sb); to DM
告	gào	(bound form) to say; to tell / to announce; to report / to denounce / to file a lawsuit; to sue