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
As security officer of the Maginot, Morrow abandons his post to kill the traitor — allowing the ship to continue its collision course into Earth.
—
Daniel D'addario, Variety, 3 Sep. 2025
Bolsonaro and his son Eduardo, who has been actively lobbying against Brazil in Washington, have both been branded as traitors by Lula supporters.
—Hussein Kalout, Foreign Affairs, 2 Sep. 2025
Anyone who serves the Israeli enemy and its schemes, aids its crimes, and seeks to enable it to commit atrocities against our people cannot be supported—except by a traitor, a traitor like him, trying to pave the way for it.
—Amira El-Fekki, MSNBC Newsweek, 1 Sep. 2025
The 1798 Alien Enemies Act After Japan's attack on Pearl Harbor, the American government viewed Japanese immigrants and Japanese Americans as potential traitors, Umemoto said.
—Eduardo Cuevas, USA Today, 24 Aug. 2025
See All Example Sentences for traitor
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Daniel D'addario, Variety, 3 Sep. 2025
Bolsonaro and his son Eduardo, who has been actively lobbying against Brazil in Washington, have both been branded as traitors by Lula supporters.
—Hussein Kalout, Foreign Affairs, 2 Sep. 2025
Anyone who serves the Israeli enemy and its schemes, aids its crimes, and seeks to enable it to commit atrocities against our people cannot be supported—except by a traitor, a traitor like him, trying to pave the way for it.
—Amira El-Fekki, MSNBC Newsweek, 1 Sep. 2025
The 1798 Alien Enemies Act After Japan's attack on Pearl Harbor, the American government viewed Japanese immigrants and Japanese Americans as potential traitors, Umemoto said.
—Eduardo Cuevas, USA Today, 24 Aug. 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 8 Sep. 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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