Translation guide
In Japanese, the concept of a 'small stone' is most commonly expressed with 小石 (koishi). Depending on context, other words like 石ころ (ishikoro) or 細石 (sazareishi) may be used, each with different nuances.
A small stone or pebble, typically found on the ground or in nature.
Referring to a small stone as a material, tool, or object with a specific purpose.
Still the most common word, even when the stone is used for something.
小石 is the standard word for a small stone. 石ころ is more colloquial and often implies a worthless or random stone. Use 小石 in neutral or formal contexts, and 石ころ in casual speech or when emphasizing insignificance.
There was a small stone on the road.
A casual, slightly childish word for a small stone, often implying it's insignificant or lying around.
子供が石ころを集めている。
The child is collecting small stones.
A literary or poetic term for a pebble or small stone, famously used in the Japanese national anthem. Rare in everyday speech.
さざれ石の巌となりて
Pebbles gather to form a great rock (from the national anthem)
庭に小石を敷き詰めた。
I covered the garden with small stones.
Refers to gravel or small stones used for paths, roads, or construction. Not for a single stone.
駐車場に砂利が敷いてある。
The parking lot is covered with gravel.