What does the word regularity mean?

Usage examples for regularity

  1. Just then a volley, fired with terrible regularity, echoed through the courtyard. – The Chouans by Honore de Balzac
  2. The huckster scheme of gathering eggs would seemingly be a means of obtaining good eggs because of the advantage of regularity of collection, but in reality it does not always work out that way. – The Dollar Hen by Milo M. Hastings