Booming

Part of speech: noun (n.)

The act of producing a hollow or roaring sound; a violent rushing with heavy roar; as, the booming of the sea; a deep, hollow sound; as, the booming of bitterns. Howitt.

Part of speech: adjective (a.)

1. Rushing with violence; swelling with a hollow sound; making a hollow sound or note; roaring; resounding. O'er the sea-beat ships the booming waters roar. Falcone.

2. Advancing or increasing amid noisy excitement; as, booming prices; booming popularity. [Colloq. U. S.]