1. In the commonly used Udden–Wentworth scale, particles between 62.5 and 2000 μ‎m. Other classifications exist (see particle size). In pedology, sand is defined as mineral particles of diameter 2.0–0.02 mm in the international system, and as 2.0–0.5 mm diameter particles in the USDA (American) system.

2. A class of soil texture.

3. See sharp sand.