What does the word duplicity mean?

Usage examples for duplicity

  1. It was the first time in her life that she had seriously determined to act towards the parent she had so long and so tenderly loved, with duplicity. – The Lights and Shadows of Real Life by T.S. Arthur Edition: 10 Language: English
  2. " Your broken heart seems to have mended quickly," said Braddock, who was trying to suppress his wrath at this instance of Lucy's duplicity, for so he considered it. – The Green Mummy by Fergus Hume
  3. But the Courts of Saxony and Hanover had from the first been acting with duplicity. – History of Modern Europe 1792-1878 by C. A. Fyffe