as in treachery
the act or fact of violating the trust or confidence of another
reading a friend's diary without permission would have to be regarded as the ultimate act of personal treason
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Recent Examples of treason
Meanwhile, Chadema chair Tundu Lissu faces treason charges for advocating an election boycott and calling for a public revolt.
—
Danish Manzoor Bhat, MSNBC Newsweek, 26 Oct. 2025
While murder and treason are the only crimes that allow Indiana judges to hold defendants without setting bond, judges can revoke bond if certain terms and conditions aren't followed.
—Ryan Murphy, IndyStar, 24 Oct. 2025
Directed by Oscar winner Bille August, The Count of Monte Cristo stars Claflin as Edmond Dantès, a young sailor who was falsely accused of treason and is imprisoned without trial in the Château d’If, a grim island fortress off Marseille, France.
—Lynette Rice, Deadline, 22 Oct. 2025
He was later tried for treason and eventually hanged.
—Peter D'abrosca, FOXNews.com, 22 Oct. 2025
See All Example Sentences for treason
Danish Manzoor Bhat, MSNBC Newsweek, 26 Oct. 2025
While murder and treason are the only crimes that allow Indiana judges to hold defendants without setting bond, judges can revoke bond if certain terms and conditions aren't followed.
—Ryan Murphy, IndyStar, 24 Oct. 2025
Directed by Oscar winner Bille August, The Count of Monte Cristo stars Claflin as Edmond Dantès, a young sailor who was falsely accused of treason and is imprisoned without trial in the Château d’If, a grim island fortress off Marseille, France.
—Lynette Rice, Deadline, 22 Oct. 2025
He was later tried for treason and eventually hanged.
—Peter D'abrosca, FOXNews.com, 22 Oct. 2025
See All Example Sentences for treason
Recent Examples of Synonyms for treason
Noun
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Tarabay leads the cast as the titular Ashur, now thriving after his treachery.—
Randall Colburn,
Entertainment Weekly,
3 Nov. 2025
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And when the surviving crew interrogates the android Ash about his treachery, the book has him pretty much spill the space beans.—
Daniel Dockery,
Vulture,
22 Sep. 2025
Noun
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The former activity can be useful; the latter is a clear betrayal.—
Damon Beres,
The Atlantic,
5 Nov. 2025
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Over the course of eight episodes, the show traces how mounting pressures, deceit and betrayal led to patriarch Alex Murdaugh murdering his wife, Maggie, and their son, Paul, in 2021.—
Brianne Tracy,
PEOPLE,
5 Nov. 2025
Cite this Entry
“Treason.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/treason. Accessed 9 Nov. 2025.
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