[ in-fawr-mer ]
See synonyms for: informerinformers on

  1. a person who informs against another, especially for money or other reward.

  2. a person who informs or communicates information or news; informant.

Origin of informer

Middle English word dating back to 1350–1400; see origin at inform1, -er1

Words that may be confused with informer

Words Nearby informer Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use informer in a sentence

British Dictionary definitions for informer


/ (ɪnˈfɔːmə) /

  1. a person who informs against someone, esp a criminal

  2. a person who provides information: he was the President's financial informer

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