betray

tr.v., -trayed, -tray·ing, -trays.

1. 1. To give aid or information to an enemy of; commit treason against: betray one's country.
   2. To deliver into the hands of an enemy in violation of a trust or allegiance: betrayed Christ to the Romans.
2. To be false or disloyal to: betrayed their cause; betray one's better nature.
3. To divulge in a breach of confidence: betray a secret.
4. To make known unintentionally: Her hollow laugh betrayed her contempt for the idea.
5. To reveal against one's desire or will.
6. To lead astray; deceive. See synonyms at deceive.

[Middle English bitrayen : bi-, be- + trayen, to betray (from Old French trair , from Latin trādere, to hand over; see tradition).]

betrayal be·tray'al n.
betrayer be·tray'er n.

verb

1. To be treacherous to: double-cross. Slang rat (on), sell out. Idioms: sell down the river. See trust/distrust.
2. To disclose in a breach of confidence: blab, divulge, expose, give away, let out, reveal, tell, uncover, unveil. Informal spill. Archaic discover. Idioms: let slip, let the cat out of the bag, spill the beans, tell all. See show/hide.
3. To cause to accept what is false, especially by trickery or misrepresentation: beguile, bluff, cozen, deceive, delude, double-cross, dupe, fool, hoodwink, humbug, mislead, take in, trick. Informal bamboozle, have. Slang four-flush. Idioms: lead astray, play false, pull the wool over someone's eyes, put something over on, take for a ride. See honest/dishonest.

v

Definition: be disloyal
Antonyms: be faithful, be loyal, defend, protect, support

v

Definition: divulge, expose information
Antonyms: be quiet, hide, keep secret

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IN BRIEF: To fail to keep an agreement or secret.

He doesn't seem like the type of person to betray a confidence.

Dansk (Danish)
v. tr. - forråde, svigte

Nederlands (Dutch)
verraden, misleiden, verlinken

Français (French)
v. tr. - trahir, être traître à, tromper, (fig) trahir, décevoir, livrer à, trahir (l'ennemi), révéler

Deutsch (German)
v. - verraten

Ελληνική (Greek)
v. - προδίδω, φανερώνω, αποκαλύπτω, μαρτυρώ, ξεσκεπάζω

Italiano (Italian)
tradire

Português (Portuguese)
v. - trair

Русский (Russian)
предать

Español (Spanish)
v. tr. - traicionar, delatar, entregar

Svenska (Swedish)
v. - förråda, svika, bedra, avslöja, yppa

中文（简体）(Chinese (Simplified))
背叛, 对...不忠, 出卖, 泄漏, 透露

中文（繁體）(Chinese (Traditional))
v. tr. - 背叛, 對...不忠, 出賣, 洩漏, 透露

한국어 (Korean)
v. tr. - ~를 배반하다, 누설하다, 무심코 들어내다

日本語 (Japanese)
v. - 裏切る, 売る, 漏らす, 密告する, うっかり表す

العربيه (Arabic)
‏(فعل) خان, غدر ب, فضح, أفشى‏

עברית (Hebrew)
v. tr. - ‮בגד ב-, העיד על, הסגיר, גילה סוד, מסר‬

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