as in informant
a person who provides information about another's wrongdoing
the informer who told the police about that conspiracy has angered a lot of dangerous people
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Example Sentences
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Recent Examples of informer
Frizer and Skeres were fraudsters, and the sinister Poley was an informer, crucial to the exposure of the Babington Plot.
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Anthony Lane,
New Yorker,
8 Sep. 2025
Option 2: If one prisoner informs while the other stays silent, the informer will go free while the silent one receives the harshest sentence.
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Michael Ashley,
Forbes.com,
29 July 2025
The Nazis set up secret squads in the camps to conduct beatings and killings of prisoners thought to be too friendly with U.S. officials or were accused of being informers.
—
Peter Lucas,
Boston Herald,
10 July 2025
Reporting from human intelligence assets – spies or unwitting informers with firsthand or secondhand knowledge – may provide information on internal Iranian assessments.
—
Joshua Rovner,
The Conversation,
2 July 2025
See All Example Sentences for informer
Anthony Lane,
New Yorker,
8 Sep. 2025
Option 2: If one prisoner informs while the other stays silent, the informer will go free while the silent one receives the harshest sentence.
—
Michael Ashley,
Forbes.com,
29 July 2025
The Nazis set up secret squads in the camps to conduct beatings and killings of prisoners thought to be too friendly with U.S. officials or were accused of being informers.
—
Peter Lucas,
Boston Herald,
10 July 2025
Reporting from human intelligence assets – spies or unwitting informers with firsthand or secondhand knowledge – may provide information on internal Iranian assessments.
—
Joshua Rovner,
The Conversation,
2 July 2025
See All Example Sentences for informer
Recent Examples of Synonyms for informer
informant
Noun
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The devices were hidden in a pack of cigarettes, the informant’s watch, and a cellphone.
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However, some members of the Hole in the Wall Gang got busted in 1981 for stealing from a home furnishings store, and Cullotta — one of those busted — became an informant.
Cite this Entry
“Informer.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/informer. Accessed 30 Jun. 2026.
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