Be·tray v. t. [imp. & p. p. Betrayed p. pr. & vb. n. Betraying.]
1. 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.
Jesus said unto them, The Son of man shall be betrayed into the hands of men. --Matt. xvii. 22.
2. 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.
But when I rise, I shall find my legs betraying me. --Johnson.
3. To violate the confidence of, by disclosing a secret, or that which one is bound in honor not to make known.
Willing to serve or betray any government for hire. --Macaulay.
4. To disclose or discover, as something which prudence would conceal; to reveal unintentionally.
Be swift to hear, but cautious of your tongue, lest you betray your ignorance. --T. Watts.
5. To mislead; to expose to inconvenience not foreseen to lead into error or sin.
Genius . . . often betrays itself into great errors. --T. Watts.
6. To lead astray, as a maiden; to seduce (as under promise of marriage) and then abandon.
7. To show or to indicate; -- said of what is not obvious at first, or would otherwise be concealed.
All the names in the country betray great antiquity. --Bryant.
v 1: reveal unintentionally; "Her smile betrayed her true
feelings" [syn: bewray]
2: deliver to an enemy by treachery; "Judas sold Jesus"; "The
spy betrayed his country" [syn: sell]
3: 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" [syn: fail]
4: be sexually unfaithful to one's partner in marriage; "She
cheats on her husband"; "Might her husband be wandering?"
[syn: cheat on, cheat, cuckold, wander]
5: give away information about somebody; "He told on his
classmate who had cheated on the exam" [syn: denounce, tell
on, give away, rat, grass, shit, shop, snitch,
6: cause someone to believe an untruth; "The insurance company
deceived me when they told me they were covering my house"
[syn: deceive, lead astray] [ant: undeceive]