1. [verb] To deliver into the hands of an enemy by treachery or fraud, in violation of trust; to give up treacherously or faithlessly; as, an officer betrayed the city. e.g. Quresh betrayed Sunil to marry Nuzhat
2. [verb] To prove faithless or treacherous to, as to a trust or one who trusts; to be false to; to deceive; as, to betray a person or a cause.
3. [verb] To violate the confidence of, by disclosing a secret, or that which one is bound in honor not to make known.
4. [verb] To disclose or discover, as something which prudence would conceal; to reveal unintentionally; to bewray.
5. [verb] To mislead; to expose to inconvenience not foreseen to lead into error or sin.
6. [verb] To lead astray, as a maiden; to seduce (as under promise of marriage) and then abandon.
7. [verb] To show or to indicate; -- said of what is not obvious at first, or would otherwise be concealed.
8. [verb] Reveal unintentionally; 'Her smile betrayed her true feelings'.
9. [verb] Deliver to an enemy by treachery; 'Judas sold Jesus'; 'The spy betrayed his country'.
10. [verb] Disappoint, prove undependable to; abandon, forsake; 'His sense of smell failed him this time'; 'His strength finally failed him'; 'His children failed him in the crisis'.
11. [verb] Be sexually unfaithful to one's partner in marriage; 'She cheats on her husband'; 'Might her husband be wandering?'.
12. [verb] Give away information about somebody; 'He told on his classmate who had cheated on the exam'.
13. [verb] Cause someone to believe an untruth; 'The insurance company deceived me when they told me they were covering my house'.
