小刀

1. Origins, structure, and basic meaning

• Structure: 小刀 is read as こがたな and is a noun for a small knife used in crafts such as carving bamboo or wood.
• Basic usage: Use 小刀で竹を削る for carving bamboo with a small knife and 小刀を鞘に納める for putting the knife into its sheath.

2. Common pitfalls and similar expressions

• Difference between 小刀 and 包丁
  • The former often means a small craft or carving knife, whereas the latter is a kitchen knife for preparing food.