What does the word blackmail mean?

Usage examples for blackmail

  1. Every now and then you would read in the paper how some woman had been arrested for attempting to blackmail him in his office. – The Book of Life: Vol. I Mind and Body; Vol. II Love and Society by Upton Sinclair
  2. Suppose they asked for money- blackmail- and there was a quarrel in which Sir Horace was shot. – The Hampstead Mystery by John R. Watson
  3. He would call upon them to arrest a man who was planning to blackmail Mrs. James Blagwin. – Somewhere in France by Richard Harding Davis