標識

1. Origins, structure, and basic meaning

• Structure: Written 標識 and read ひょうしき, it denotes a sign or marker conveying directions, rules, or warnings.
• Basic usage: It is used for road restrictions, wayfinding, and hazard zones.

2. Common pitfalls and similar expressions

• Functional sign, not an advertisement
  • Its main purpose is public information or safety rather than promoting a business.