高騰

1. Origins, structure, and basic meaning

• Structure: 高騰, read こうとう, combines high 高 with soaring 騰 to express a sharp price rise.
• Basic usage: Use it when a price or cost rises sharply, as in 材料費が高騰する.

2. Common pitfalls and similar expressions

• Scope and context
  • It suggests a sharper and more burdensome rise than ordinary 上昇 and is normally used for prices or costs.