1
: one who betrays another's trust or is false to an obligation or duty
2
: one who commits treason
Examples of traitor in a Sentence
She has been called a traitor to the liberal party's cause.
He was a traitor who betrayed his country by selling military secrets to the enemy.
Recent Examples on the Web
Modern American presidents have called their domestic political opponents, or enemies, many things over the years, but never a traitor.
—
Peter Lucas, Boston Herald, 28 July 2025
In the game, traitors are secretly chosen at the outset while the remaining contestants must work together to unmask them before being eliminated themselves.
—Naman Ramachandran, Variety, 25 June 2025
His brother Jun-ho is still searching for the island and is unaware there’s a traitor in his group.
—Monica Mercuri, Forbes.com, 23 June 2025
Young-il’s brother is still searching for the island — but a traitor on the boat is preventing the detective from reaching the game site.
—Monica Mercuri, Forbes.com, 28 June 2025
See All Example Sentences for traitor
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Peter Lucas, Boston Herald, 28 July 2025
In the game, traitors are secretly chosen at the outset while the remaining contestants must work together to unmask them before being eliminated themselves.
—Naman Ramachandran, Variety, 25 June 2025
His brother Jun-ho is still searching for the island and is unaware there’s a traitor in his group.
—Monica Mercuri, Forbes.com, 23 June 2025
Young-il’s brother is still searching for the island — but a traitor on the boat is preventing the detective from reaching the game site.
—Monica Mercuri, Forbes.com, 28 June 2025
See All Example Sentences for traitor
Cite this Entry
“Traitor.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/traitor. Accessed 4 Aug. 2025.
Copy CitationKids Definition
traitor
noun
trai·tor
ˈtrāt-ər 
1
: one who betrays another's trust or is false to an obligation or duty
2
: one who commits treason
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