改造

かいぞう

remodeling

JLPT N2

Character Breakdown

Meaning and Usage

The word 改造 (かいぞう) means "remodeling" or "modification." It is often used when talking about changing or improving something existing, such as buildings, vehicles, or systems. The focus is on altering the structure or function to make it better or different.

Common Contexts

You will frequently see 改造 used in contexts like home renovation (古い家を改造する), car modifications (車を改造する), or system upgrades (システムを改造する). It implies a significant change rather than minor repairs.

Collocations and Patterns

  • 改造する: to remodel or modify something
  • エンジンを改造する: to modify an engine (common in car contexts)
  • システムを改造する: to upgrade or remodel a system
  • 古い建物を改造する: to renovate an old building

Nuances and Tips

Using 改造 suggests a deliberate and often technical change. It is more formal and specific than just "changing" (変える). Avoid confusing it with 修理 (しゅうり), which means "repair" and implies fixing something broken rather than changing its structure or function.

When you use 改造, you imply that the original has been improved or altered in a meaningful way, often with a technical or mechanical nuance.

Example Sentences

ふるいいえをかいぞうしてカフェにしました。

We remodeled an old house into a café.

このくるまはエンジンをかいぞうしてせいのうをあげています。

This car’s engine has been modified to improve performance.

かいしゃのシステムをかいぞうしてこうりつをよくした。

We remodeled the company’s system to improve efficiency.