離宮

1. Origins, structure, and basic meaning

• Structure: 離宮, read りきゅう, combines separation 離 with palace 宮 to denote a secondary palace away from the main one.
• Basic usage: It denotes a secondary palace apart from the main one, as in 王族が離宮へ移る.

2. Common pitfalls and similar expressions

• Scope and context
  • It has a historical and institutional association with royalty, unlike an ordinary vacation home 別荘.