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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Recent Examples of informer
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
The court can instruct the jury to view with caution the testimony of, say, an informer or a drug addict.
—Daniel Arkin, NBC news, 10 June 2025
See All Example Sentences for informer
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
The court can instruct the jury to view with caution the testimony of, say, an informer or a drug addict.
—Daniel Arkin, NBC news, 10 June 2025
See All Example Sentences for informer
Recent Examples of Synonyms for informer
informant
Noun
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In addition to ignoring glaring inconsistencies in the sole eyewitness account, Kuby said prosecutors illegally hid from the defense benefits provided to the girl’s mom and buried evidence identifying the true killer provided by informants, who came forward years after the trial.—
Molly Crane-Newman,
New York Daily News,
28 Apr. 2026
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In another case, the SPLC said intel from the informant program was passed to law enforcement and led to the conviction of a man who lied about his ties to a white supremacist group while requesting national security clearance.—
ABC News,
ABC News,
28 Apr. 2026
Cite this Entry
“Informer.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/informer. Accessed 7 May. 2026.
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