本館

1. Origins, structure, and basic meaning

• Structure: 本館 is read as ほんかん and means “main building”.
• Basic usage: The examples show the main building containing reception and a passage closed during renovations.

2. Common pitfalls and similar expressions

• Distinguishing senses and uses
  • It is the principal building in a multi-building facility and contrasts with an annex 別館.