鉄砲

1. Origins, structure, and basic meaning

• Structure: 鉄砲 is read as てっぽう and is a noun for a gun or firearm, including historical matchlocks in suitable contexts.
• Basic usage: Use 古い鉄砲の構造 for studying an old firearm and 鉄砲を背負う for carrying one on the back.

2. Common pitfalls and similar expressions

• Modern gun and historical weapon
  • It can be a hunter’s gun in a narrative or an older historical firearm in a museum; context determines the type.
• Geminated reading
  • The reading is てっぽう with a geminated consonant, not a character-by-character てつほう.