What does the word posture mean?

Usage examples for posture

  1. Never since he was a boy had the captain jumped so sharply from a sitting posture to his legs. – Philosopher Jack by R.M. Ballantyne
  2. England may be a land of heroic hearts, but it is not, properly, a land of heroic figures, or heroic posture- making. – Lavengro The Scholar, The Gypsy, The Priest by George Borrow