What does the word illness mean?

Usage examples for illness

  1. But since the emperor's illness has taken a dangerous turn things have gone back again. – The Isle of Unrest by Henry Seton Merriman
  2. I knew nothing of her illness; her letter reached me only an hour ago. – Doctor Cupid by Rhoda Broughton
  3. It was very obvious that he had died of illness. – Cold Ghost by Chester S. Geier