皇室

1. Origins, structure, and basic meaning

• Structure: 皇室 is read as こうしつ and is a noun for the Japanese imperial family or imperial house centered on the emperor.
• Basic usage: Its relation to politics appears in 皇室と政治, while associated rites appear in 皇室の儀礼.

2. Common pitfalls and similar expressions

• Difference from 王室
  • 王室 is a royal family centered on a king or queen; 皇室 is an imperial house.
• Family and institution
  • Context can include not only individual members but also the house’s ceremonies and institutional role.