high treason

noun

: treason sense 1

Examples of high treason in a Sentence

The conspirators were hanged for high treason.

Recent Examples on the Web

His unprecedented February arrest was the first of a royal since 1649, when King Charles I was beheaded for high treason. — Meredith Kile, PEOPLE, 29 July 2026

Consciously or otherwise, Jefferson was quoting from a speech delivered by the English radical Richard Rumbold moments before he was executed for high treason in 1685. — Literary Hub, 15 June 2026

Purists argue nothing beyond eggs, mayonnaise, salt and pepper constitutes culinary high treason. — Paul Stephen, San Antonio Express-News, 1 Apr. 2026

The last was King Charles I, who was tried and executed in 1649 for high treason and tyranny. — Janet Loehrke, USA Today, 19 Feb. 2026

Word History

First Known Use

15th century, in the meaning defined above

Rhymes for high treason

• milesian
• partizan
• postseason
• preseason
• unreason
• reason
• season
• seizin

Kids Definition

high treason

noun

: treason sense 2