What does the word prerogative mean?

Usage examples for prerogative

  1. The exercise of its prerogative, and its ambition as a body, leading it to oppose itself to the strong and support the weak, it served by turns the crown against the aristocracy and the nation against the crown. – History of the French Revolution from 1789 to 1814 by F. A. M. Miguet
  2. It is the one prerogative of virtue that I really envy. – The Green Carnation by Robert Smythe Hichens