A big stone was lying on the road.
子供が川で石を投げて遊んでいる。
The children are playing by throwing stones into the river.
Refers to gemstones, often used in compounds like 宝石 (ほうせき). Standalone use is less common but understood.
指輪にきれいな石がついている。
The ring has a beautiful stone set in it.
Specifically the flint in a cigarette lighter or similar sparking device.
ライターの石がなくなった。
The lighter's flint has run out.
game piece; stone (in go); disc (in Othello)
A round piece used in board games, especially go stones or Othello discs.
碁盤の上に白と黒の石を置く。
Place white and black stones on the go board.
Medical term for a calculus, such as a kidney stone or bladder stone.
腎臓に石ができてしまった。
I developed a stone in my kidney.
The children were playing by throwing stones into the river.
I tripped on a stone on the mountain path and fell.
A stone formed in his kidney and he had surgery.
Placing a stone in the corner early on is standard strategy.
stony mountain; rocky mountain
small stone; pebble; rock
whetstone; grindstone; sharpening stone
stone paving; cobblestone pavement; flagstone · stone steps · check pattern; checkerboard pattern · pavé (rectangular dessert)
stone steps; stone stairway
black stone · black go stone; black (go pieces)
hot stone; heated stone
stone mortar; millstone; quern
asbestos
quarrying; quarryman · stonecutting; stonemasonry; stonecutter; stonemason
stone-built storehouse
obstinate person; stubbornness; pigheadedness · hard head (like a rock)
stone; stone-built; made of stone
stonemason; mason; stonecutter
granite
masonry; stonework
lifting stone; strength stone
pebble; round stone; boulder
go stone; go piece
pumice stone; pumice
paving stone; pavement
stone wall; dry stone wall · rocky cliff; stone precipice
stoning; throwing stones at someone · rock fight; stone-throwing fight · wedding-night stone-throwing custom
boulder; cobble; round stone
stone oven; masonry oven; brick oven
ornamental garden stone; garden rock · sacrifice stone (in Go) · sacrifice (of oneself, one's career, etc.) · foundation stone; riprap