What does the word traitor mean?

Usage examples for traitor

  1. I should feel like a traitor if I helped you. – The Late Mrs. Null by Frank Richard Stockton
  2. " I am not a traitor," said Florian. – The Landleaguers by Anthony Trollope
  3. You have made me a traitor to my country. – Korea's Fight for Freedom by F.A. McKenzie