supergrass

/ (ˈsuːpəˌɡrɑːs) /

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noun

an informer whose information implicates a large number of people in terrorist activities or other major crimes

QUIZ

THINGAMABOB OR THINGUMMY: CAN YOU DISTINGUISH BETWEEN THE US AND UK TERMS IN THIS QUIZ?

Do you know the difference between everyday US and UK terminology? Test yourself with this quiz on words that differ across the Atlantic.

Question 1 of 7

In the UK, COTTON CANDY is more commonly known as…

candystring

candyfloss

candypuff

TAKE THE QUIZ TO FIND OUT

Words nearby supergrass

Super Glue, supergovernment, supergrade, supergranulation cell, supergraphics, supergrass, supergravity, supergroup, superharden, superheat, superheavy

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

How to use supergrass in a sentence

The new names were handed over by a suspect turned "supergrass".
Diana's Boyfriend Fears Phone Was Hacked|Tom Sykes|March 16, 2013|DAILY BEAST
All this is small beer compared with the supergrass that BCL Burton Copeland may turn out to be.
Murdoch’s Lawyers Turn on Him|Sam Bungey|August 18, 2011|DAILY BEAST