To make a deep, resonant sound, or to move with such a sound. Can also mean to engage in a street fight.
From Middle English 'romblen', possibly imitative of the sound itself. The slang meaning 'street fight' emerged in 1940s American English, popularized by gang culture and later by musicals like West Side Story.
The verb 'rumble' perfectly demonstrates onomatopoeia - words that sound like what they describe. Interestingly, elephants communicate through infrasonic rumbles below human hearing range, traveling for miles through the ground to coordinate herds.
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