Gravel (noun)

1. Small stones, typically rounded by erosion and between 2 mm and 65 mm in diameter, used for making paths and drives, in drainage and in concrete.
2. An area of ground covered with gravel.

Origin:

Middle english: from old french gravele, from latin gravella "pebble", diminutive of gravis "heavy".

Examples:

1. The driveway was covered in gravel.
2. He spread a layer of gravel over the path.
3. The gravel road was bumpy.
4. The gravel pit was a source of construction material.
5. The gravel was used to make concrete.