砂粒

1. Origins, structure, and basic meaning

• Structure: 砂粒 combines 砂 and 粒 and is read すなつぶ.
• Basic usage: Use it to focus on individual grains, such as sand in a shoe or grains catching the light.

2. Common pitfalls and similar expressions

• The number of grains
  • 砂粒 can refer to one grain of sand or to several.
  • Use a phrase such as 一粒の砂 to specify a single grain.