What does the word concerning mean?

Usage examples for concerning

  1. You have a daughter, and it is concerning her that I am here." – Jess of the Rebel Trail by H. A. Cody
  2. Probably things went on in such a quiet way that there was nothing particular to say concerning them. – Pine Needles by Susan Bogert Warner
  3. He said that he had come from the police on an urgent matter concerning to- morrow's execution. – The Crystal Stopper by Maurice LeBlanc