変換

1. Origins, structure, and basic meaning

• Structure: 変換(へんかん) combines 変, change, with 換, conversion or replacement.
• Basic usage: It describes conversion into another form, such as speech into text or heat into electricity.

2. Common pitfalls and similar expressions

• Before and after conversion
  • In 音声を文字に変換する, 音声 is what is converted and 文字 is the resulting form.
• Conversion and exchange
  • 交換(こうかん) focuses on exchanging things or replacing one with another. 変換 focuses on a change in the form of an expression, energy, or similar material.