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Definitions

betray

[bih-trey] / bɪˈtreɪ /
VERB
be disloyal
Synonyms
STRONGEST
abandon deceive forsake mislead seduce
STRONG
bluff cross delude desert finger jilt knife trick
WEAK
be unfaithful bite the hand that feeds you blow the whistle break faith break promise break trust break with commit treason deliver up double-cross go back on inform against inform on let down play Judas play false sell down the river sell out stab in the back take in turn in turn informer turn state's evidence walk out on
Antonyms
STRONG
aid assist help stay
WEAK
be faithful be loyal be quiet defend hide keep secret protect support
VERB
divulge, expose information
Synonyms
STRONGEST
reveal
STRONG
disclose evince inform manifest show sing snitch spill squeal stool tattle tell uncover unmask
WEAK
blurt out dime fink on give away lay bare let slip make known rat on tell on turn in
Antonyms
STRONG
conceal cover hide withhold
WEAK
be faithful be loyal be quiet defend keep secret protect support

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.

It can’t be deposed, call the police or betray a confidence.

From The Wall Street Journal • Apr. 6, 2026

If Borgli’s film is to be believed, we only really begin to understand someone when they betray our trust.

From Salon • Apr. 3, 2026

"I don't think anyone would betray her father," said Alfredo Canchica, leader of another collective, the Fundacion 3 Raices.

From Barron's • Jan. 14, 2026

Epstein’s style, as a whole, does betray an attitude, and that is arrogance.

From Slate • Nov. 14, 2025

Gregg had once told Agent Burger that he knew something about the murders, though he remained coy, insisting that he couldn’t betray a confidence.

From "Killers of the Flower Moon" by David Grann