TREASON Synonyms: 43 Similar and Opposite Words

treason

noun

ˈtrē-zᵊn

Definition of treason

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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Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of treason Over time, Russian prosecutors have begun to charge more of these Ukrainians with treason—for the crime of betraying Russia—rather than with harming the interests of a foreign state. — Joshua Yaffa, New Yorker, 10 Aug. 2026 In 1305, Scottish rebel leader Sir William Wallace was executed by the English for treason. — ABC News, 10 Aug. 2026 The book — with its treatment of racial integration as equivalent to the death-penalty federal crime of treason — has inspired numerous acts of racist violence through the years since its publication. — Harmeet Kaur, CNN Money, 30 July 2026 Russian journalist Darya Shipacheva was convicted of treason by a Moscow court and sentenced Wednesday to 12 ‌years in a penal colony, the Interfax news agency reported. — Reuters, NBC news, 29 July 2026 See All Example Sentences for treason

Recent Examples of Synonyms for treason

Noun

For his treachery in conspiring with Gwayne, Daemon claims Corlys as his own prisoner.

— Amanda Whiting, Vulture, 10 Aug. 2026
Guides spoke of the monthlong siege that ended only because of the treachery of a local noble who turned on the sultan and allowed British troops to scale the walls.

— Ishaan Tharoor, New Yorker, 2 July 2026

Definition of treachery

Noun

The extremely soapy, enjoyably satirical true-life drama chronicles love, rampant betrayal and a brazen murder plot through three decades of the iconic Gucci fashion house.

— Brian Truitt, USA Today, 28 Aug. 2026
That act of literary betrayal—the source of Kiyosaki’s fame and much of his wealth—is the enduring mystery of his life.

— Christopher Cox, Vanity Fair, 26 Aug. 2026

Definition of betrayal

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treads

treason

treasonous

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“Treason.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/treason. Accessed 2 Sep. 2026.

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Synonyms of treason

noun

Example Sentences

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Words for an Impeachment

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Tulip/Turban, Cloak/Clock, & 8...

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