noun / adjective / adverb / verb
stone
STOHN/stəʊn/
Hard solid mineral material.
A gray stone rests on a tabletop with a few tiny chips nearby.

Etymology
Old English stān already named individual pieces of rock, including ordinary rocks and precious gems. The selected meaning preserves that concrete sense, rather than the later sense of rock as a material.
In context
… descended into the rocky shaft it went down at an acute angle for some 50 ft the floor being covered with broken Stone then there extended a long straight passage cut in the solid rock
More examples
- A low stone wall surrounds the garden.
- The ring has a bright green stone.
- My coffee is stone cold.
- The scan reveals a small kidney stone.
Forms
stone · stones · stoned · stoning
stony adjective — Covered with stones or resembling stone.