登録

1. Origins, structure, and basic meaning

• Structure: 登録 is read as とうろく and means “registration”.
• Basic usage: The examples show registering as a library user and receiving a number after registration.

2. Common pitfalls and similar expressions

• Distinguishing senses and uses
  • It is formally entering information into a list or system for later eligibility, use, or identification, not merely making a note.