informer

🇬🇧/ɪnˈfɔːmə(r)/ 🇺🇸/ɪnˈfɔːrmər/
📚 18229 1 GRE
An informer is a person who tells the police that someone has done something illegal. 告密者

noun [专属名词] 告密者;通知者;控告人

One of the gang members had turned informer. 团伙中的一员后来变成了告密者。

inform(通知) + er(人) → 通知的人 → 告发者, 告密者
informer

n. 通知者;控告人;告密者

单词造句:
网友用 “Informer” 造句精选
Prentice saw Goss fall in behind the informer. 普伦蒂斯看见戈斯走在密探身后。
The police has informer in the London underworld. 警察在伦敦的下流社会中有告密者。
...two men suspected of being police informers. …被怀疑为警方线人的两名男子。