乱用

1. Origins, structure, and basic meaning

• Structure: 乱用 (らんよう) is a noun that also forms a する verb for abuse, misuse, or excessive use.
• Basic usage: It describes overusing a word or preventing the improper exercise of authority.
  • 便利な言葉でも乱用すると意味が薄れる。 — Even a useful word loses meaning when overused.
  • 権限の乱用を防ぐ仕組みを考えた。 — We designed safeguards against abuse of authority.

2. Common pitfalls and similar expressions

• Use and misuse
  • 乱用 is not merely frequent use; it includes excessive or improper use that may dilute meaning, diminish value, or infringe rights.