- to deliver or expose to an enemy by treachery or disloyalty: Benedict Arnold betrayed his country.
- to be unfaithful in guarding, maintaining, or fulfilling: to betray a trust.
- to disappoint the hopes or expectations of; be disloyal to: to betray one's friends.
- to reveal or disclose in violation of confidence: to betray a secret.
- to reveal unconsciously (something one would preferably conceal): Her nervousness betrays her insecurity.
- to show or exhibit; reveal; disclose: an unfeeling remark that betrays his lack of concern.
- to deceive, misguide, or corrupt: a young lawyer betrayed by political ambitions into irreparable folly.
- to seduce and desert.
Origin of betray
SynonymsSee more synonyms on Thesaurus.com
Examples from the Web for betrayal
Betrayal…you can hear it…betraying the thing he loves for a cheap bit of film publicity.The Story Behind Lee Marvin’s Liberty Valance Smile
January 3, 2015
We all felt the betrayal not so much of the institution as of the man who had noisily and heroically put it on the map.Ben Bradlee Was the Last of the Newspaper Giants
October 22, 2014
To a certain degree, there is an irrational sense of betrayal.
The worldwide panic over her new look is rooted in a sense of betrayal to the "be yourself" values that Bridget Jones embodied.
Guns, money, sex, and betrayal: Rarely do the news gods smile down on us with such charity.Glock Family Goes Down, Guns Blazing
October 11, 2014
There must be women there, and women meant screams, horror, betrayal.Way of the Lawless
And at this time Shakespeare has suffered Herbert's betrayal.The Man Shakespeare
This marriage with Peggy, for instance, looks like a betrayal of her.Murder Point
"The Night of Betrayal" is presented in the form of a story within a story.The Historical Nights' Entertainment
If he had betrayed them, yet he had so contrived that they should not suffer by that betrayal.The Sea-Hawk
- to aid an enemy of (one's nation, friend, etc); be a traitor toto betray one's country
- to hand over or expose (one's nation, friend, etc) treacherously to an enemy
- to disclose (a secret, confidence, etc) treacherously
- to break (a promise) or be disloyal to (a person's trust)
- to disappoint the expectations of; failhis tired legs betrayed him
- to show signs of; indicateif one taps china, the sound betrays any faults
- to reveal unintentionallyhis grin betrayed his satisfaction
- betray oneself to reveal one's true character, intentions, etc
- to lead astray; deceive
- euphemistic to seduce and then forsake (a woman)
Word Origin and History for betrayal
late 13c., bitrayen "mislead, deceive, betray," from be- + obsolete Middle English tray, from Old French traine "betrayal, deception, deceit," from trair (Modern French trahir) "betray, deceive," from Latin tradere "hand over," from trans- "across" (see trans-) + dare "to give" (see date (n.1)). Related: Betrayed; betraying.