Definition

1. Verb:
   • To betray: To be disloyal or unfaithful to someone, especially after having gained their trust. It involves breaking a commitment, promise, or allegiance.
   • To revolt / To rebel: To turn against and actively oppose a leader, group, or cause to which one was formerly loyal.

Usage Examples

• Verb:
  • Hắn đã bội phản lời thề của mình. (He betrayed his oath.)
  • Những kẻ bội phản âm mưu lật đổ chính phủ. (The rebels plotted to overthrow the government.)

Advanced Usage

• The word "bội phản" is often used in formal or literary contexts, particularly concerning serious acts of treachery in political, military, or profound personal relationships.

Variants and Related Words

• Phản bội (v): This is the more common and frequently used synonym for "to betray."
  • Cô ấy cảm thấy bị phản bội. (She felt betrayed.)

Synonyms

• Betray: To be disloyal to someone's trust.
• Double-cross: To deceive someone who trusts you, especially in a secret plan.
• Rebel: To resist or fight against authority or control.

Related Idioms

• Ăn cháo đá bát: (Literally: To eat the porridge and kick the bowl) To bite the hand that feeds you; to be ungrateful and betray someone who has helped you.
  • Hành động của hắn chính là ăn cháo đá bát. (His actions are a true betrayal of kindness.)

1. như phản bội