betrayal

/bɪˈtreɪəl/
noun
  1. The act of being disloyal or unfaithful to someone who trusts you.
    • She felt a deep sense of betrayal when her best friend shared her secret.
    • The betrayal of his country by the spy shocked the entire nation.
    • In the story, the hero's betrayal by his closest ally was the turning point.
  2. An act that reveals something that was meant to be kept hidden or secret.
    • His nervous laugh was a betrayal of his true feelings.
    • Her trembling hands were a betrayal of the calm voice she tried to use.
    • The empty wallet was a betrayal of his promise to save money.
What does "betrayal" mean? | whatsthatwordmean | whatsthatwordmean