戸籍

1. Origins, structure, and basic meaning

• Structure: 戸籍, read こせき, denotes officially maintained identity and family-registration records.
• Basic usage: It names a copy of family-registration records submitted for a procedure and the registration system discussed at a counter.

2. Common pitfalls and similar expressions

• Official family-registration records
  • It refers to officially maintained identity and family records and their documents, not family relationships in general.