What does the word dealing mean?

Usage examples for dealing

  1. His work was very largely in connection with a special secret service body dealing with spies. – This Freedom by A. S. M. Hutchinson
  2. Well, Mr. Raeburn isn't on our side, but for judgment and fair dealing there are very few men of his class and circumstances I would trust as I would him. – Marcella by Mrs. Humphry Ward
  3. Number six is the first point dealing with a particular nation. – Public Opinion by Walter Lippmann