thunder (
http://definr.com/thunder)
n 1: a deep prolonged loud noise [syn:
boom,
roar,
roaring]
2: a booming or crashing noise caused by air expanding along
the path of a bolt of lightning
v 1: move fast, noisily, and heavily; "The bus thundered down the
road"
2: utter words loudly and forcefully; "`Get out of here,' he
roared." [syn:
roar]
3: be the case that thunder is being heard; "Whenever it
thunders, my dog crawls under the bed." [syn:
boom]
4: to make or produce a loud noise; "The river thundered
below"; "The engine roared as the driver pushed the car to
full throttle."