informer
[in'fɔ:mə]
n.告发者, 告密者
例句与用法：
An informer denounced him to the police (as a terrorist).
检举人已向警方告发他(是恐怖分子).
The informer has done dirt to her.
告密者说了她很多坏话。
One who informs against others; an informer.
告密者检举他人的人; 告密的人
The gang leader decided that the informer must be taken for a ride.
土匪头目决定把告密者开车带走杀掉。
An informer supplied the police with the names of those involved in the crime.
一位告发者向警察局提供了涉及这次犯罪的人员名单。
详细释义：
n.
告密者; 通知者; 提供情报者