What does the word thirteen mean?

Usage examples for thirteen

  1. Only a little more than thirteen hundred pesetas for fourteen plays. – Their Son; The Necklace by Eduardo Zamacois
  2. Didn't I always say thirteen was an unlucky number? – Jimmy Kirkland and the Plot for a Pennant by Hugh S. Fullerton
  3. I am glad to see that I had so much sense thirteen years ago. – The Note-Books of Samuel Butler by Samuel Butler