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.
verb
1
To abrade the surface of (something) with sand or sandpaper in order to smooth or clean it.