rumble
intransitive verbTo make a deep, long, rolling sound.
intransitive verbTo move or proceed with a deep, long, rolling sound.
intransitive verbTo engage in a gang fight.
intransitive verbTo utter with a deep, long, rolling sound.
intransitive verbTo polish or mix (metal parts) in a tumbling box.
nounA deep, long, rolling sound.
nounA tumbling box.
nounA luggage compartment or servant’s seat in the rear of a carriage.
nounPervasive, widespread expression of unrest or dissatisfaction.