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Synonyms

traitor

American  
[tray-ter] / ˈtreɪ tər /

noun

  • traitors
    plural
  1. a person who betrays another person, a cause, or any trust.

  2. a person who commits treason by betraying their country.


traitor British  
/ ˈtreɪtə /

noun

  1. a person who is guilty of treason or treachery, in betraying friends, country, a cause or trust, etc

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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Derived Forms

Inflected Forms

Nouns

Etymology

Origin of traitor

First recorded in 1175–1225; Middle English from Old French from Latin trāditōr-, stem of trāditor “betrayer”; see traditor

Explanation

A traitor says one thing but does another. If you promise a friend you'll keep his secret, but instead you blab it to everyone, you're a traitor. The word origin says it all: traditorem is the Latin word for "betrayer." Liar? Yes. Backstabber? Yes. True friend? Heavens, no. Traitors betray the trust of those who have faith in them or believe their promises. Traitor also applies to a person who betrays his country by committing treason: turning against his own government, perhaps by selling secret information.

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Vocabulary lists containing traitor

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

"I did not choose the traitor life, the traitor life chose me," said the latest recruit to the dark side.

From BBC ● Oct. 9, 2026

The remaining traitors, Maya Jama and James Acaster, met in the turret later with the choice of murdering previously shortlisted players Jerry Hall and Hannah Fry, or seducing a third traitor to replace Grant.

From BBC ● Oct. 8, 2026

“Romesh, Joe, Rob know me really well. They all know that I don’t change my mind overnight,” he said, as he pondered whether to turn and help fellow traitor Richard E Grant clear his name.

From BBC ● Oct. 4, 2026

"You came into the bar, and said you were a traitor," she told him.

From BBC ● Oct. 2, 2026

He was eager to arrest Thomas Jefferson as a traitor to the king.

From "In the Shadow of Liberty" by Kenneth C. Davis

The uproar over “NAZA” has also led the filmmakers to be called traitors in their country.

From Los Angeles Times ● Oct. 9, 2026

He particularly enjoyed filming “New Blood,” which puts real people to the test as traitors and faithful instead of celebrities.

From Los Angeles Times ● Oct. 2, 2026

His fellow traitors clearly wanted to be supportive, but things were getting dicey.

From BBC ● Oct. 2, 2026

A total of 21 presenters, comedians, actors and musicians will try their hand at being traitors and faithfuls in the show, which airs on 1 October.

From BBC ● Sep. 29, 2026

Is it Dauntless traitors, guarding me, or the Erudite, observing me?

From "Insurgent" by Veronica Roth

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