洗面所

1. Origins, structure, and basic meaning

• Structure: 洗面所, read せんめんじょ, is a room or area equipped for washing and grooming.
• Basic usage: It can be the room whose mirror is cleaned or a shared washroom located outside guest rooms.

2. Common pitfalls and similar expressions

• Wash area versus toilet facilities
  • 洗面所 denotes the area around a washbasin used for washing and grooming. It does not inherently guarantee that toilet facilities are included; the actual layout must be established separately.