What does the word effort mean?

Usage examples for effort

  1. And at last she said with an effort: " It would help to pass the time, I daresay. – The Great Hunger by Johan Bojer
  2. Give me something for effort; I tried hard enough. – Four-Day Planet by Henry Beam Piper
  3. It will be no effort for you to do as you have always done. – Studies in the Out-Lying Fields of Psychic Science by Hudson Tuttle