Definitions:
hard solid non-metallic mineral matter of which rock is made, especially as a building material

a piece of stone shaped for a purpose, especially one of commemoration, ceremony, or demarcation

a hard seed in a cherry, plum, peach, and some other fruits.

a unit of weight equal to 14 lb (6.35 kg)

a natural shade of whitish or brownish-grey

throw stones at

remove the stone from (a fruit).

build, face, or pave with stone