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
Unbowed in court The Jewish Anti-Fascist Committee’s leaders were charged with bourgeois nationalism, treason and espionage.
—
Wendy Z. Goldman, The Conversation, 1 Dec. 2025
Republican Senator Lisa Murkowski on Tuesday blasted the accusations of treason and sedition facing Democratic Senator Mark Kelly.
—Robert Birsel, MSNBC Newsweek, 26 Nov. 2025
This past September, Tshisekedi retaliated by having Kabila tried in absentia and sentenced to death for war crimes and treason.
—Jon Lee Anderson, New Yorker, 24 Nov. 2025
What is the punishment for treason?
—Laura Gersony, AZCentral.com, 22 Nov. 2025
See All Example Sentences for treason
Wendy Z. Goldman, The Conversation, 1 Dec. 2025
Republican Senator Lisa Murkowski on Tuesday blasted the accusations of treason and sedition facing Democratic Senator Mark Kelly.
—Robert Birsel, MSNBC Newsweek, 26 Nov. 2025
This past September, Tshisekedi retaliated by having Kabila tried in absentia and sentenced to death for war crimes and treason.
—Jon Lee Anderson, New Yorker, 24 Nov. 2025
What is the punishment for treason?
—Laura Gersony, AZCentral.com, 22 Nov. 2025
See All Example Sentences for treason
Recent Examples of Synonyms for treason
Noun
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With season 4 rapidly approaching, now's the time to prepare for the treachery to come.—
Randall Colburn,
Entertainment Weekly,
22 Dec. 2025
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Instead of being killed, Ashur takes Spartacus’ life and is consequently rewarded for his treachery by the Roman Empire.—
Aramide Tinubu,
Variety,
1 Dec. 2025
Noun
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In June 2025, Peacock revealed the latest slate of celebrities set to battle it out in a high-stakes game of lies, alliances and betrayal inside a castle in the Scottish Highlands — all for a chance to win up to $250,000.—
Samantha Stutsman,
PEOPLE,
8 Jan. 2026
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Rumors of treason, incompetence and betrayal swirled.—
Antonio María Delgado,
Miami Herald,
8 Jan. 2026
Cite this Entry
“Treason.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/treason. Accessed 11 Jan. 2026.
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