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
Currently, the Indiana constitution requires all defendants to be offered bail unless they are charged with murder or treason, Koch said.
—
Alexandra Kukulka, Chicago Tribune, 26 Jan. 2026
Current law says only those accused of murder or treason can have bail withheld, but this language expands that possibility to other offenses, such as misdemeanors.
—Kayla Dwyer, IndyStar, 23 Jan. 2026
Veteran opposition figure Kizza Besigye, a four-time presidential candidate, remains in prison after he was charged with treason last February.
—Los Angeles Times, 17 Jan. 2026
He was later charged with terrorism, treason and incitement to hatred.
—Antonio María Delgado, Miami Herald, 9 Jan. 2026
See All Example Sentences for treason
Alexandra Kukulka, Chicago Tribune, 26 Jan. 2026
Current law says only those accused of murder or treason can have bail withheld, but this language expands that possibility to other offenses, such as misdemeanors.
—Kayla Dwyer, IndyStar, 23 Jan. 2026
Veteran opposition figure Kizza Besigye, a four-time presidential candidate, remains in prison after he was charged with treason last February.
—Los Angeles Times, 17 Jan. 2026
He was later charged with terrorism, treason and incitement to hatred.
—Antonio María Delgado, Miami Herald, 9 Jan. 2026
See All Example Sentences for treason
Recent Examples of Synonyms for treason
Noun
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Perfidy — from the French perfidie via the Latin perfidia — means deceitfulness, treachery or a breach of faith or promise.—
Harmeet Kaur,
CNN Money,
21 Jan. 2026
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But despite all this, not every Chelsea fan outside his family will regard this transfer as treachery.—
Simon Johnson,
New York Times,
17 Jan. 2026
Noun
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It’s filled with super-heightened emotions; unrestrained passion, betrayal, evil and even a magic spell or two.—
David Lyman,
Cincinnati Enquirer,
5 Feb. 2026
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What’s most striking about the response is the sense of betrayal about Aronofsky’s involvement.—
Jake Kanter,
Deadline,
5 Feb. 2026
Cite this Entry
“Treason.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/treason. Accessed 15 Feb. 2026.
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