What does the word rumble mean?

Usage examples for rumble

  1. From below came the low rumble of moving machinery. – Penny Nichols Finds a Clue by Joan Clark
  2. Through the breathless night there came the faint rumble of a ship's chains. – The Silver Horde by Rex Beach
  3. There was the song of the birds and a little later the rumble of an occasional wagon over the paved streets. – The Just and the Unjust by Vaughan Kester