sand

1. Rock that is ground more finely than gravel, but is not as fine as silt (more formally, see grain sizes chart), forming beaches and deserts and also used in construction.
2. (often in the plural) A beach or other expanse of sand.

   The Canadian tar sands are a promising source of oil.

3. (circa 1920) Personal courage.
4. A particle from 62.5 microns to 2 mm in diameter, following the Wentworth scale.
5. A light beige colour, like that of typical sand.
6. A single grain of sand.
7. A moment or interval of time; the term or extent of one's life (referring to the sand in an hourglass).

adjective

Of a light beige colour, like that of typical sand.

1. To abrade the surface of (something) with sand or sandpaper in order to smooth or clean it.
2. To cover with sand.
3. To blot ink using sand.

noun

A sandpiper.