What does the word earth mean?

Usage examples for earth

  1. Am I on earth? – Petticoat Rule by Emmuska Orczy, Baroness Orczy
  2. Now the earth was clear and hard and cold. – The Prelude to Adventure by Hugh Walpole
  3. I haven't a friend on earth but you! – The Damnation of Theron Ware by Harold Frederic