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informer

nounattested in dialogue

  • //ɪnˈfɔːɹ.məɹ//

One who informs someone else about something.

noun

  1. 1

    One who informs someone else about something.

  2. 2

    A person who tells authorities about improper or illegal activity.

    Being an informer often meant living in fear.

    The police relied on an informer to catch the gang.

    He acted as an informer during the rebellion.

  3. 3

    One who informs, animates, or inspires.

    1729, Alexander Pope, Prologue to Sophonisba (by James Thomson Nature, informer of the poet's art.

Etymology

Inherited from Middle English enformour, from Anglo-Norman enfourmour; equivalent to inform + -er.

Forms

plural
informers
The neighbouring pagesAlphabetical order follows the rules of the language, not byte values: an accent decides only between two otherwise identical words, and Spanish files Ñ as a letter of its own.

Lexical content from Wiktionary, under CC BY-SA 4.0 · Source entry · Data version 2026-08-23

Rank among the words of the OpenSubtitles 2018 corpus — film and television subtitles, so spoken rather than written usage (CC BY-SA 3.0).