1. (v. i.) To make a low, heavy, continued sound; as, the thunder rumbles at a distance.

2. (v. i.) To murmur; to ripple.

3. (n.) A noisy report; rumor.

4. (n.) A low, heavy, continuous sound like that made by heavy wagons or the reverberation of thunder; a confused noise; as, the rumble of a railroad train.

5. (n.) A seat for servants, behind the body of a carriage.

6. (n.) A rotating cask or box in which small articles are smoothed or polished by friction against each other.

7. (v. t.) To cause to pass through a rumble, or shaking machine. See Rumble, n., 4.

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