Tra từ supergrass - Từ điển Oxford Advanced Learner 8th

Từ điển Oxford Advanced Learner 8th

supergrass super·grass f15 [supergrass supergrasses] BrE [ˈsuːpəɡrɑːs] BrE [ˈsjuːpəɡrɑːs] NAmE [ˈsuːpərɡræs] noun (BrE, informal) a criminal who informs the police about the activities of a large number of other criminals, usually in order to get a less severe punishment compare ↑grass _n. (⁵)