火山

1. Origins, structure, and basic meaning

• Structure: 火山 is read as かざん and is a noun for a volcano, a mountain produced by volcanic activity.
• Basic usage: A large volcano model in a science room appears in 火山の大きな模型, while painting with a distant volcano as the background appears in 火山を背景に描く.

2. Common pitfalls and similar expressions

• A model and the mountain
  • It can name the subject of a classroom model or the actual mountain visible in a landscape.
• Difference from 山
  • Unlike the general word for a mountain, this term specifically denotes one formed by volcanic activity.