故国

1. Origins, structure, and basic meaning

• Structure: 故国(ここく) refers to the country where one was born or grew up: one's homeland.
• Basic usage: It suits contexts of longing for home in a distant land or returning after many years.

2. Common pitfalls and similar expressions

• Hometown and country
  • 故郷 can refer to one's home village or region, whereas 故国 focuses on the country.
• Register and feeling
  • A phrase such as 故国の歌 brings out a person's connection with their homeland.
  • It foregrounds that relationship instead of merely naming a country and suits literary or formal contexts.