剣

1. Origins, structure, and basic meaning

• Structure: 剣 is read as つるぎ and can mean “sword” or “blade”, depending on context.
• Basic usage: The examples show a mythic hero’s raised sword and an ancient blade reconstructed as a model.

2. Common pitfalls and similar expressions

• Distinguishing senses and uses
  • It evokes a sword, often double-edged or symbolic, rather than the broader category 刃物 for bladed tools.