stone
/stoʊn/
nounA hard, solid non-metallic mineral matter of which rock is made, often used as a building material.
“He skipped a flat stone across the surface of the lake.”
Synonyms: rock, pebble, boulder, gem, mineral
A hard, solid non-metallic mineral matter of which rock is made, often used as a building material.
“He skipped a flat stone across the surface of the lake.”