TOP

Definition of supergrass noun from the Oxford Advanced Learner's Dictionary

supergrass

noun
 
/ˈsuːpəɡrɑːs/
 
/ˈsuːpərɡræs/
(British English, informal)
jump to other results
  1. 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 grassTopics Crime and punishmentc2
previously
adverb
 
 
From the Word list
Oxford 3000
B1
Oxford Learner's Dictionaries Word of the Day