無料

1. Origins, structure, and basic meaning

• Structure: Written 無料 and read むりょう, it means that no fee is charged for a specified service, item, or admission.
• Basic usage: It applies to museum entry for students and a bus running to an event venue without charge.

2. Common pitfalls and similar expressions

• Check what and for whom is free
  • The surrounding noun and conditions define whether the exemption covers admission, transport, or a particular group.