as in betrayal
the act or fact of violating the trust or confidence of another
was furious that she revealed his secret and never forgave her for the treachery
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Recent Examples of treachery
Sinners is about vampires, perpetual outsiders who desperately yearn to belong, but whose silky promises are rooted in treachery.
—
Stephanie Zacharek, Time, 18 Apr. 2025
Later down the line, after being summoned to resolve a conflict that was a front for the Emperor’s treachery, Khazan was deemed a traitor to the empire, and he and his comrades — like Ozma — were executed or exiled for aiding a traitor.
—Scott McRae, Rolling Stone, 24 Mar. 2025
Because of that treachery Castor was a pure mortal, but Pollux was a half god.
—Mike Lynch, Twin Cities, 6 Apr. 2025
After weeks of treachery and deception, the final roundtable has been viewed, and the winner or winners for The Traitors Season 3 have been revealed.
—Armando Tinoco, Deadline, 6 Mar. 2025
See All Example Sentences for treachery
Stephanie Zacharek, Time, 18 Apr. 2025
Later down the line, after being summoned to resolve a conflict that was a front for the Emperor’s treachery, Khazan was deemed a traitor to the empire, and he and his comrades — like Ozma — were executed or exiled for aiding a traitor.
—Scott McRae, Rolling Stone, 24 Mar. 2025
Because of that treachery Castor was a pure mortal, but Pollux was a half god.
—Mike Lynch, Twin Cities, 6 Apr. 2025
After weeks of treachery and deception, the final roundtable has been viewed, and the winner or winners for The Traitors Season 3 have been revealed.
—Armando Tinoco, Deadline, 6 Mar. 2025
See All Example Sentences for treachery
Recent Examples of Synonyms for treachery
Noun
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There’s a subtle sense that taking pleasure in domesticity might be a betrayal of my values—as if nurturing children, or even enjoying something as benign as baking, plays into oppressive tropes.—
Samantha Mann,
Time,
5 June 2025
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Financial elder abuse victims Financial elder abuse victims suffer affects to their psychological, emotional and physical well-being, such as feelings of betrayal, fear, guilt, depression and anxiety, according to the grand jury report.—
Rosalio Ahumada,
Sacbee.com,
5 June 2025
Noun
-
Lee’s campaign has asserted that a sitting president cannot be criminally prosecuted, except in cases of treason.—
Jong Eun Lee,
The Conversation,
29 May 2025
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The cost of failure would have been death on the grounds of treason.—
Daniel Twining,
National Review,
22 May 2025
Cite this Entry
“Treachery.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/treachery. Accessed 17 Jun. 2025.
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