1
as in informer
a person who provides information about another's wrongdoing
the arrested drug dealer vowed that he would get his revenge on his betrayer
Synonyms & Similar Words
Relevance
2
as in traitor
one who betrays a trust or an allegiance
the betrayer of Anne Frank's family in Amsterdam has never been identified for certain
Synonyms & Similar Words
Example Sentences
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Recent Examples of betrayer
Lesch plays the savior’s anguished betrayer not as an intellectual equal who fiercely debates him and loses all patience with the movement.
—
Christopher Arnott, Hartford Courant, 3 May 2026
Judas, the betrayer of Jesus Christ, was believed to be the 13th Apostle to join the table at the Last Supper.
—Chad Murphy, Cincinnati Enquirer, 13 Feb. 2026
Christopher Arnott, Hartford Courant, 3 May 2026
Judas, the betrayer of Jesus Christ, was believed to be the 13th Apostle to join the table at the Last Supper.
—Chad Murphy, Cincinnati Enquirer, 13 Feb. 2026
Recent Examples of Synonyms for betrayer
Noun
-
And so every regime invests in having student informers.—
Anne Applebaum,
The Atlantic,
23 Jan. 2026
-
The whole family is deeply involved in the revolutionary movement: the oldest son disappears into Siberia, never to be seen or heard of again, while the youngest, eighteen, is jailed together with his father, and executed after his cell is exposed by an informer.—
Literary Hub,
Literary Hub,
22 Jan. 2026
Noun
-
In doing so, Din becomes a traitor to his bounty hunter guild, led by Greef Karga (Carl Weathers).—
Brendan Morrow,
USA Today,
16 May 2026
-
As a result, he was tried in absentia, declared a traitor and subjected to the state’s harshest penalties.—
Kimberly Nath,
The Conversation,
7 May 2026
Noun
-
The only reason anybody learned about it was the informant’s guilty plea.—
Lars Daniel,
Forbes.com,
14 May 2026
-
Lea Garofalo Lea Garofalo was an Italian civilian informant whose break with the ’Ndrangheta ended in her murder.—
Encyclopedia Britannica,
Encyclopedia Britannica,
13 May 2026
Noun
-
That is the canary in the 2 percent statistic.—
Lars Daniel,
Forbes.com,
14 May 2026
-
After Spirit Airlines ceased operations, in the middle of the night on May 2nd, a series of canary-yellow airplanes sat on the tarmac at Newark Airport, arranged neatly like children’s toys at day’s end.—
Doreen St. Félix,
New Yorker,
9 May 2026
Noun
-
The colilargo itself has no presence across the Strait of Magellan in Tierra del Fuego, which is believed to be too cold and isolated for the rat.—
ABC News,
ABC News,
19 May 2026
-
The first two fatalities, a Dutch couple, were probably infected through exposure to rat droppings while bird-watching in Argentina.—
The Week US,
TheWeek,
18 May 2026
Cite this Entry
“Betrayer.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/betrayer. Accessed 20 May. 2026.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
