informant

noun

in·​for·​mant in-ˈfȯr-mənt How to pronounce informant (audio)
Synonyms of informantnext
: a person who gives information: such as
a
b
: one who supplies cultural or linguistic data in response to interrogation by an investigator

Examples of informant in a Sentence

The police were alerted to the plot by a paid informant. We learned the language with the help of a native informant.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
According to his plea agreement with prosecutors, Doyle sold a Glock pistol to an undercover informant on May 20, 2025 — part of a series of transactions on Chicago’s South Side that led to his arrest on July 7, 2025, a few days after the shooting at his daughter’s party. Sam Charles, Chicago Tribune, 22 June 2026 Former Gambino mobster and government informant John Alite poses on a Queens street in 2013. Cara Tabachnick, CBS News, 20 June 2026 Rogness is charged with one count of being an accessory after the fact and one count of tampering with a witness, victim or informant. Angela George, USA Today, 19 June 2026 More recently, the Department of Justice charged the Southern Poverty Law Center — a civil rights nonprofit accused by Republicans of targeting conservatives in its work tracking extremists — with defrauding donors through payments to informants. James Pollard, Los Angeles Times, 15 June 2026 See All Example Sentences for informant

Word History

First Known Use

1641, in the meaning defined above

Time Traveler
The first known use of informant was in 1641

Cite this Entry

“Informant.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/informant. Accessed 23 Jun. 2026.

Kids Definition

informant

noun
in·​for·​mant in-ˈfȯr-mənt How to pronounce informant (audio)

Legal Definition

informant

noun
in·​for·​mant in-ˈfȯr-mənt How to pronounce informant (audio)
: one who informs against another
specifically : one who makes a practice especially for money of informing police of others' criminal activities

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