betray

• Verbe utilisé pour désigner l'acte de manquer à la loyauté envers quelqu'un ou quelque chose, ou le fait de révéler involontairement une information.

A verb used to indicate the act of being disloyal to someone or something, or revealing information unintentionally.

1. B2formal

   To be disloyal to someone who trusts you, especially by helping their enemies or doing something harmful.

   Trahir

   • He betrayed his country by selling secrets to the enemy.
   • She felt betrayed when her best friend lied to her.
   • The general betrayed his troops by surrendering without a fight.

   Synonymesdeceivedouble crosssell out

   Antonymesaidassistdefendprotectstand bysupportuphold

2. Reveal unintentionallyB2formal

   To show or reveal something that should be kept hidden, often without meaning to.

   Révéler involontairement

   • His trembling hands betrayed his nervousness.
   • Her expression betrayed her true feelings about the news.
   • The slight hesitation in his voice betrayed his uncertainty.

   Synonymesdiscloseexposegive awayleakreveal

   Antonymesconcealhidemasksuppress

3. Deceive or misleadB2formal

   To lead someone to believe something false, especially for personal gain.

   Tromper en induisant en erreur

   • The con artist betrayed the elderly couple's trust.
   • He betrayed his promise to help her with the project.
   • The politician betrayed the voters' expectations by changing his stance.

   Synonymesbeguiledeceivedeludedouble crossdupefoolhoodwinkmisleadtrick