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treachery JUST WRITTEN FOR YOU

/ˈtɹɛtʃəɹi/ · treach·er·y
noun
  1. Deliberate, often calculated, disregard for trust or faith. The politician's treachery was exposed when she voted against her party's interests.
  2. The act of violating the confidence of another, usually for personal gain. The employee's treachery was discovered when she stole company secrets to sell to a competitor.
  3. Treason. The king's treachery was punishable by death in the medieval code of law.
Did you know? The word 'treachery' has been used in literature to describe the actions of villains and traitors, such as Iago in Shakespeare's 'Othello'.
Written by Lexi Wordsworth, Dictionary Editor 0 lookups Added Jul 16, 2026