Thesaurus results for BETRAYER

betrayer

noun

as in informer

a person who provides information about another's wrongdoing the arrested drug dealer vowed that he would get his revenge on his betrayer

Synonyms & Similar Words

Relevance

as in traitor

one who betrays a trust or an allegiance the betrayer of Anne Frank's family in Amsterdam has never been identified for certain

Synonyms & Similar Words

Example Sentences

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.

Recent Examples of betrayer The inferno that follows, as the betrayer’s dragon sets fire to both armies and then Tumbleton itself, will be rendered with both practical flames and CGI. — Jackson McHenry, Vulture, 10 Aug. 2026 Then go ahead and depict the country’s prime minister as the betrayer of Christ. — David Frum, The Atlantic, 21 May 2026 Lesch plays the savior’s anguished betrayer not as an intellectual equal who fiercely debates him and loses all patience with the movement. — Christopher Arnott, Hartford Courant, 3 May 2026 Judas, the betrayer of Jesus Christ, was believed to be the 13th Apostle to join the table at the Last Supper. — Chad Murphy, Cincinnati Enquirer, 13 Feb. 2026

Recent Examples of Synonyms for betrayer

Noun

One of State Security’s main goals, as well as a central source of its strength, is turning civilians into informers.

— Abraham Jiménez Enoa, The Dial, 19 May 2026
And so every regime invests in having student informers.

— Anne Applebaum, The Atlantic, 23 Jan. 2026

Definition of informer

Noun

Aside from his surprise heartthrob status, the British comedian has been vocal about feeling anxious as a traitor.

— Lily Ford, HollywoodReporter, 19 Oct. 2026
Abby became suspicious of Kuehl during a private conversation about possible traitors in the group.

— Lisa Gutierrez, Kansas City Star, 12 Oct. 2026

Definition of traitor

Noun

Sentenced to life in prison, Buchanan maintained a grip over gangs in the South Bay area of San Diego, according to an FBI report of an informant’s interview.

— Matthew Ormseth, Los Angeles Times, 22 Oct. 2026
Sguros was listed as the informant on West’s death certificate, and several months after the initial death investigation, was legally authorized to release West’s remains to a cremation service business.

— Angie DiMichele, Sun Sentinel, 22 Oct. 2026

Definition of informant

Noun

For a cold moment the silence locked a grip on our table, though it was broken, at the edges, by the golf commentators moaning and harrumphing, Rory McIlroy having had a canary on a seventeenth fairway somewhere this championship Sunday.

— Kevin Barry, New Yorker, 11 Oct. 2026
Astronauts bring them on journeys to keep an eye on whether or not the water filtration systems are working, much the way miners used to take canaries down to the coal mines to check for poisonous gas leaks.

— Leslie Felperin, HollywoodReporter, 18 Sep. 2026

Definition of canary

Noun

In 1894 French-Swiss bacteriologist Alexandre Yersin isolated the plague bacterium and connected rat infestations to the disease.

— Faye Flam, Scientific American, 27 Oct. 2026
That money will fund a rat model of Jaxson’s gene mutation, which is expected to be studied at UT Southwestern next year.

— Ciara McCarthy October 22, Fort Worth Star-Telegram, 22 Oct. 2026

Definition of rat

Browse Nearby Words

betrayed

betrayer

betrayers

See all Nearby Words

Cite this Entry

Style

“Betrayer.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/betrayer. Accessed 30 Oct. 2026.

Copy Citation

Synonyms of betrayer

noun

Example Sentences

Browse Nearby Words

Cite this Entry

More from Merriam-Webster

Word of the Day

reticent

Popular in Grammar & Usage

How to Use 'Who' vs. 'Whom'

Merriam-Webster’s Great Big List of Words You Love to Hate

'Affect' vs. 'Effect'

'A' or 'an'? What about before 'h'? An Indefinite Article Guide

Why is '-ed' sometimes pronounced at the end of a word?

Popular in Wordplay

The Longest Long Words List

9 Words That Sound Like Insults But Aren't

Pwn, Skibidi, Girlboss and Other Words Added to the 2026 Scrabble Dictionary

The Words of the Week - Oct. 30

12 Lovely and Unusual Words for the Natural World

Popular

How to Use 'Who' vs. 'Whom'

The Longest Long Words List

9 Words That Sound Like Insults But Aren't

Games & Quizzes