Synonym: deceive, mislead, trick. Similar words: betrayal, betroth, betrothed, betrothal, tray, stray, astray, portray. Meaning: [bɪ'treɪ] 
v. 1. reveal unintentionally 2. deliver to an enemy by treachery 3. disappoint, prove undependable to; abandon, forsake 4. be sexually unfaithful to one's partner in marriage 5. give away information about somebody 6. cause someone to believe an untruth.
v. 1. reveal unintentionally 2. deliver to an enemy by treachery 3. disappoint, prove undependable to; abandon, forsake 4. be sexually unfaithful to one's partner in marriage 5. give away information about somebody 6. cause someone to believe an untruth. 
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121) Do not betray your turtledove to the beast, do not forget forever the life of your poor.
122) I would as lief kill myself as betray my master.
123) Men flatter her and then betray her. Her people embrace her and then vilify hr.
124) But this may betray a certain psychological naivete, for a growing research base is showing much of our moral thinking is automatic and nonconscious - mindless even.
More similar words: betrayal, betroth, betrothed, betrothal, tray, stray, astray, portray, ashtray, straying, portrayal, detract, retract, retrace, perpetrate, penetrate, free trade, detractor, retractile, retraction, retraining, detraction, perpetrator, penetrative, retractable, penetrating, impenetrable, free trade zone, active transport, ray.