informer

名词 informer:

1. one who reveals confidential information in return for money
   同义词：betrayer, rat, squealer, blabber

1. 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).
2. The informer has done dirt to her.
   告密者说了她很多坏话。
3. One who informs against others; an informer.
   告密者检举他人的人; 告密的人
4. 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。
5. 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。

in.form.er

n.（名词）
An informant, especially one who informs against others, often for compensation.
通知者：告密者，尤指告密反对他人者，其目的通常是为了得到回报