lodge · inn

1. Origins, structure, and basic meaning

• Structure: 宿 conveys lodging or a place to stay.
• Basic usage: 宿（やど） means lodging or an inn, while 宿題（しゅくだい） means homework.

2. Common pitfalls and similar expressions

• Lodging and homework: meanings and readings
  • 今夜の宿 means a place to stay tonight. A small riverside inn for an overnight stay is also a 宿, read やど.
  • 数学の宿題 means math homework, and 宿題のノート means a homework notebook. 宿題 has the word-level meaning homework, with its first part read しゅく.