Rumblings are signs that a bad situation is developing or that people are becoming annoyed or unhappy. There were rumblings of discontent within the ranks
continuous full and low-pitched throbbing sound; "the rumbling rolling sound of thunder"
If someone is rumbled, the truth about them or something they were trying to hide is discovered. When his fraud was rumbled he had just £20.17 in the bank. a series of long low sounds rumble of
a fight between rival gangs of adolescents a servant's seat (or luggage compartment) in the rear of a carriage a loud low dull continuous noise; "they heard the rumbling of thunder"
An extraneous low-frequency noise, often of indeterminate pitch, caused by physical vibration of a turntable or of the room in which a recording was made
{i} deep loud sound, thundering sound; rumble seat, back section of a roadster or coupe which opens to form a seat; street fight, brawl, scuffle (Slang)