a person, especially a criminal, who gives the police a lot of information about the activities of criminals, especially serious onesمخبر / خبرچین پلیس، بویژه کسی که خودش مجرم است
مثال؛
We were able to crack the case thanks to a supergrass who gave us valuable information.
... [مشاهده متن کامل]
In a discussion about organized crime, someone might mention, “Supergrasses play a crucial role in bringing down criminal organizations. ”
A news headline might read, “Supergrass testifies against gang members in high - profile trial. ”