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.

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.

To violate the confidence of, by disclosing a secret, or
that which one is bound in honor not to make known.

To disclose or discover, as something which prudence
would conceal; to reveal unintentionally.

To mislead; to expose to inconvenience not foreseen to
lead into error or sin.

To lead astray, as a maiden; to seduce (as under promise
of marriage) and then abandon.

To show or to indicate; – said of what is not obvious
at first, or would otherwise be concealed.