Synonyms for Rumble (same or very similar meaning)
WordNet sense 1 (a loud low dull continuous noise):
grumble, rumbling, grumblingWordNet sense 2 (a fight between rival gangs of adolescents):
gang fightWordNet sense 3 (to utter or emit low dull rumbling sounds):
growlFrom the ODE community, based on WordNetadd/edit