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
Last month on The View, Behar talked of Trump’s claim that his predecessor, Barack Obama, was guilty of treason, accusing his team of cooking the intelligence as a pretext for the Russian interference investigation in 2026.
—
Glenn Garner, Deadline, 7 Aug. 2025
Pike was later charged by his commanding officers with insubordination and treason, and escaped punishment by resigning his command.
—Owen Clarke, Outside, 6 Aug. 2025
Zambada’s capture has led to a treason investigation in Mexico, since under Mexican law, treason includes kidnapping someone and shipping them to another country.
—John Annese, New York Daily News, 5 Aug. 2025
He has been charged with treason and Newsweek has contacted the Russian Defense Ministry for comment.
—Brendan Cole, MSNBC Newsweek, 31 July 2025
See All Example Sentences for treason
Glenn Garner, Deadline, 7 Aug. 2025
Pike was later charged by his commanding officers with insubordination and treason, and escaped punishment by resigning his command.
—Owen Clarke, Outside, 6 Aug. 2025
Zambada’s capture has led to a treason investigation in Mexico, since under Mexican law, treason includes kidnapping someone and shipping them to another country.
—John Annese, New York Daily News, 5 Aug. 2025
He has been charged with treason and Newsweek has contacted the Russian Defense Ministry for comment.
—Brendan Cole, MSNBC Newsweek, 31 July 2025
See All Example Sentences for treason
Recent Examples of Synonyms for treason
Noun
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When does compromise become treachery or defeat?—
Literary Hub,
Literary Hub,
3 Sep. 2025
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Could Juno be behind this treachery, as payback for David destroying her spy corporation and for changing his oldest daughter into a killer?—
Demetrius Patterson,
HollywoodReporter,
27 Aug. 2025
Noun
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The sense of shock and betrayal is palpable in the Qatari capital.—
Paula Hancocks,
CNN Money,
10 Sep. 2025
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Watching the actors sign language through glee, heartache, torment and even betrayal makes for some stunning scene work.—
Lily Ford,
HollywoodReporter,
9 Sep. 2025
Cite this Entry
“Treason.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/treason. Accessed 16 Sep. 2025.
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