What does the word treason mean?

Usage examples for treason

  1. She could not refuse; yet to accept seemed a treason. – The Salamander by Owen Johnson
  2. Then the dwarf said that he was the Lord High Sheepstealer of England, and that he arrested us all for high treason. – Yellow-Cap and Other Fairy-Stories For Children by Julian Hawthorne
  3. But his will played him treason. – Three Women by Ella Wheeler Wilcox
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