supergrass

British

/ ˈsuːpəˌɡrɑːs /

noun

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

"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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

supergrass

The fate of the supergrass, under witness protection somewhere in the UK, also captivated people.

From BBC ● Dec. 6, 2025

Under these terms, he was obliged to confess to everything he had done, and give evidence as a supergrass against any associates facing prosecution.

From The Guardian ● Mar. 8, 2018

The lilies and chrysanthemums were far more delicate than the government-enforced supergrass, but at least they were of her choosing.

From Slate ● Feb. 21, 2018

An artist's impression of the defendants and prison officers in the dock A judge is to give his ruling in the UVF supergrass trial in Belfast on Wednesday.

From BBC ● Feb. 22, 2012

Evidence from just one supergrass, Christopher Black, has led to 35 convictions, including that of Kevin Artt.

From Time Magazine Archive

Random Word

Spin the wheel and learn a new word!

Get a word

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023