告发gàofā向公安机关、法院或政府检举揭发{report (an offender) to a public security organ, the court or the government; inform on or against; lodge an accusation against}: 写信～他的违法行为{write a letter in accusation of his illegal behaviour}|尽管多方遮掩,还是被人～了。{He was finally reported despite all his efforts to conceal the facts.}