What does the word blackguard mean?

Usage examples for blackguard

  1. But what made you fix on Hempdon as the headquarters of the blackguard? – Malcolm Sage, Detective by Herbert George Jenkins
  2. With regard to Nick Ratcliffe, I believe myself that the fellow is something of a blackguard, but in any case she both fears and hates him. – The Way of an Eagle by Ethel M. Dell
  3. Would he show that last virtue of a blackguard- courage? – The Explorer by W. Somerset Maugham