What does the word mounting mean?

Usage examples for mounting

  1. " The death rate is mounting," Gelsen said. – Watchbird by Robert Sheckley
  2. " You have just tired yourself with mounting that wild thing, Daisy," said my Aunt Gary. – Daisy by Elizabeth Wetherell
  3. They heard the nuns mounting the stairs, and discovery seemed inevitable. – The Strange Story Book by Mrs. Andrew Lang