What does the word phantom mean?

Usage examples for phantom

  1. That phantom will never be gone from my mind. – The Passionate Friends by Herbert George Wells
  2. No powerless phantom can understand what a human heart can do when its best energies are aroused." – Undine by Friedrich de la Motte Fouque
  3. Then- I think it was some jealous feeling about the phantom that decided me- I quickened my steps to a run down the staircase. – The Best Short Stories of 1921 and the Yearbook of the American Short Story by Various