者

1. Origins, structure, and basic meaning

• Structure: 者, read もの here, refers to a person who meets the description placed before it.
• Basic usage: It groups people by a condition, such as wanting to participate or having broken a rule.
  • 参加を希望する者は、受付で名前を書いてください。

2. Common pitfalls and similar expressions

• Register compared with 人
  • 者 often appears in formal writing such as notices and regulations. In everyday conversation, 人 is often a more natural way to refer to the same people.