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
Synonyms & Similar Words
Relevance
Antonyms & Near Antonyms
Example Sentences
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
Parliamentary officials met with at least 10 student unions, whose demands included the release of demonstrators and an investigation into Prabowo’s accusation about treason.
—
Reuters, NBC news, 4 Sep. 2025
Trump himself had incited the riot, which is also an act of treason.
—Chicago Tribune, 14 Aug. 2025
Rupert survives Culloden but is executed for treason soon after.
—Maggie Fremont, Vulture, 8 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
See All Example Sentences for treason
Reuters, NBC news, 4 Sep. 2025
Trump himself had incited the riot, which is also an act of treason.
—Chicago Tribune, 14 Aug. 2025
Rupert survives Culloden but is executed for treason soon after.
—Maggie Fremont, Vulture, 8 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
See All Example Sentences for treason
Recent Examples of Synonyms for treason
Noun
-
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
-
When does compromise become treachery or defeat?—
Literary Hub,
Literary Hub,
3 Sep. 2025
Noun
-
But his mass deportation agenda is increasingly viewed as a betrayal, leaving many second-guessing their support.—
Nick Lichtenberg,
Fortune,
1 Oct. 2025
-
What begins as betrayal becomes a story of resilience and solidarity—proving Richard picked the wrong trio to mess with.—
Denise Petski,
Deadline,
30 Sep. 2025
Cite this Entry
“Treason.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/treason. Accessed 2 Oct. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share