What does the word missing mean?

Usage examples for missing

  1. Nothing was missing and nothing had been disturbed. – The Gray Phantom's Return by Herman Landon
  2. The Physician called for the two boys with their missing single eyes to be brought to him. – Si'Wren of the Patriarchs by Roland Cheney
  3. It was not till near two o'clock next day that we heard anything of my missing charge. – In a Glass Darkly, v. 3/3 by Joseph Sheridan Le Fanu