What does the word spy mean?

Usage examples for spy

  1. Brigit was in suspense about the two men who had so strangely and secretly worked with their spy, Bedr, and whom she expected to meet again later. – It Happened in Egypt by C. N. Williamson A. M. Williamson
  2. So you have been the spy who has reported my every doing and my every secret council to Tubain! – Giants on the Earth by Sterner St. Paul Meek
  3. " That spy-" " Chief, are you sure?" – Brain Twister by Gordon Randall Garrett Laurence Mark Janifer