1.   He heard a roaring noise and his house began cracking.

2.   The spokesman, Mitch Baranowski, said that the pilot decided to return to the airport because of the roaring noise created by the loss of the door.

3.   When it ran, the roaring noise was so painfully loud they backed away to quieter water.

4.   Zoo curator Rosemary Markham said the normally docile primate makes roaring noises, screams and bangs on her enclosure walls.