Definition of: rumble

(rum′bəl) v. ·bled, ·bling v.i.
1. To make a low, heavy, rolling sound, as thunder.
2. To move or proceed with such a sound.
—v.t.
3. To cause to make a low, heavy, rolling sound.
4. To utter with such a sound.
5. To subject to the action of a tumbling box.
—noun
1. A continuous low, heavy, rolling sound; a muffled roar.
2. A tumbling box: also rum′bler.
3. A seat or baggage compartment in the rear of a carriage.
4. A folding seat in the back of a coupé or roadster: in full, rumble seat.
5. U.S. Slang A fight involving a group, usually deliberately provoked. [ME romblen <MDu. rommelen]
—rum′bler noun
—rum′bling·ly adverb