日記

1. Origins, structure, and basic meaning

• Structure: 日記（にっき） means a dated record of daily events or thoughts.
• Basic usage: Use it for writing about a day or rereading past entries.

2. Common pitfalls and similar expressions

• A personal diary versus a daily log
  • 日記 is commonly used for a record of personal experiences and thoughts.
  • 日誌 is often used for a day-by-day record of work or activities.