使用

1. Origins, structure, and basic meaning

• Structure: 使用, read しよう, is a noun that combines with する for using a tool, facility, fire, or other resource for a purpose.
• Basic usage: Rules use the noun in 火の使用, while an action appears in 道具を使用する.

2. Common pitfalls and similar expressions

• Noun and する verb
  • Distinguish presenting use as a regulated activity from describing the action of using a particular object.
• Formality compared with 使う
  • 使用する suits instructions and regulations, while 使う is often more natural in ordinary conversation.