What does the word apprehension mean?

Usage examples for apprehension

  1. Because of that apprehension of mine, I refused the office of best man till Willoughby had sent me a third letter. – The Complete Project Gutenberg Works of George Meredith by George Meredith
  2. There is positively no ground for apprehension, and I hope you won't spoil my walk by the thought that my foolish little girl is frightened." – The Seaboard Parish, Complete by George MacDonald
  3. His face may have expressed apprehension or alarm, but it certainly did not show hope or joy. – The Ascent of the Matterhorn by Edward Whymper