沙子 (shā zi): песок

The children ran barefoot on the beach; the sand was fine and soft, and it felt especially comfortable underfoot.

As soon as the sea breeze blew, sand flew into my eyes, so I had to close them and stop to rub them.

Workers mix sand, cement, and water in proportion to build walls and lay floor tiles.

In the desert, apart from sand, you can hardly see anything else; it's even hard to find a single tree.

The kitten scratched around in the litter box, scattering sand all over the floor, so the owner had to clean up again.