noun

1. Small fragments of rock, used for laying on the beds of roads and railways, and as ballast.

2. A type or grade of small rocks, differentiated by mineral type, size range, or other characteristics.

3. A particle from 2 to 64 mm in diameter, following the Wentworth scale

Synonyms: gallstone, stones, chessil, chisel

verb

1. To apply a layer of gravel to the surface of a road, etc.

2. To puzzle or annoy

3. To run (as a ship) upon the gravel or beach; to run aground; to cause to stick fast in gravel or sand.