What does the word boom mean?

Usage examples for boom

  1. Abreast of Jefferson Barracks they heard the boom of a cannon, and a great ring of smoke drifted in their direction. – The Boys' Life of Mark Twain by Albert Bigelow Paine
  2. If he actually did possess such a weakness, Little Missouri and the boom town were fully able to satisfy it. – Roosevelt in the Bad Lands by Hermann Hagedorn
  3. But suppose there is a regular battle on, it would be hard to tell about the boom from any particular gun, wouldn't it? – The Boy Volunteers with the French Airmen by Kenneth Ward