Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

treason

noun [U]
 
 
/ˈtriː.zən/

Definition

(the crime of) showing no loyalty to your country, especially by helping its enemies or trying to defeat its government: Guy Fawkes was executed for treason.Disloyalty, betrayal and treasonTerrorism and political crime
(Definition of treason noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

“treason” in other dictionaries

More Results for “treason”

Word of the Day

throw sb together

If two people are thrown together, they meet each other in a way that was not planned, or events...

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More