betray

I

(New American Roget's College Thesaurus)

v. play false; divulge, reveal. See information, improbity, disclosure.

II

(Roget's IV) v.

1. [To deliver into the hands of an enemy]

Syn. play false, break faith (with), inform on, inform against, turn in, commit treason, turn informer, delude, break one's promise, be false to, be false-hearted to, be disloyal to, go over to the enemy, trick, let down, disappoint, deceive, sell down the river*, play Judas*, give the Judas kiss to*, double-cross*, deliver up*, sell out*, stab in the back*, bite the hand that feeds one*, cross up*, turn state's evidence; see also deceive , inform 2 .

Ant. support*, adhere, stand firm.

2. [To lead astray]

Syn. seduce, misguide, corrupt; see seduce .

3. [To reveal]

Syn. divulge, disclose, uncover, make known; see reveal 1 .

See Synonym Study at deceive , reveal .

III

(Roget's 3 Superthesaurus) v.

1. break faith turn traitor, deceive, *pull a Judas, sell out, stab in the back, *sell down the river, *two-time, *double-cross, *fink, *rat on.

2. reveal give away, show, disclose, tell on, unmask, divulge, expose.

ANT.: 1. be loyal, be faithful. 2. hide, cover up

IV

(Roget's Thesaurus II) verb 1. To be treacherous to: double-cross. Slang: rat (on), sell out. Idiom: sell down the river. See TRUST. 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. 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.