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noun

betrayer

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Betrayer (noun) means a person who betrays someone, or who gives away secrets to those who shouldn't have them; an informer. Example: “The film centers on a wartime betrayer who sold out his own resistance cell.”

noun
1
A person who betrays someone, or who gives away secrets to those who shouldn't have them; an informer.
"The film centers on a wartime betrayer who sold out his own resistance cell."
"History rarely remembers a betrayer kindly."

How to use betrayer

Learner’s notes

In plain EnglishSomeone who breaks trust by betraying another person.

Common pairings
a betrayer of trust the ultimate betrayer
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Word forms

Plural
betrayers
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Fill the gap

Can you complete this real example?

The film centers on a wartime _____ who sold out his own resistance cell.

Etymology

Simply betray plus the agent suffix -er, "one who does" — the same pattern as "teacher" from "teach."

rat traitor blabber informer squealer two-timer double-dealer double-crosser

Antonyms

Related words

Rhymes for betrayer

See all rhymes for betrayer →

Frequently asked questions

What does “betrayer” mean?
The word “betrayer” means a person who betrays someone, or who gives away secrets to those who shouldn't have them; an informer. In plain terms, someone who breaks trust by betraying another person.
How do you use “betrayer” in a sentence?
Here is “betrayer” used in a sentence: “The film centers on a wartime betrayer who sold out his own resistance cell.”
What is the opposite of “betrayer”?
The opposite of “betrayer” — its antonyms — are backstabbee, betrayee and loyalist.
What part of speech is “betrayer”?
“Betrayer” is a noun.

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