informer
🇬🇧/ɪnˈfɔːmə(r)/ 🇺🇸/ɪnˈfɔːrmər/📚 18152 9 1GREAn 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。
单词造句:
One of the gang members had turned informer. 团伙中的一员后来变成了告密者。