Translation guide
A logbook is a record of events, journeys, or operations. In Japanese, the most common equivalent is 日誌 (にっし) for daily logs, while 航海日誌 (こうかいにっし) is used specifically for a ship's log. The choice depends on context: vehicle logs, work logs, and personal diaries each have distinct terms.
A book or digital record where daily events, activities, or operations are logged, such as in a workplace, school, or personal context.
The most common and general term for a daily log or journal, used in professional and educational settings.
毎日、業務日誌をつけています。
I keep a daily work logbook.
Typically a personal diary, but can be used for a daily log in informal contexts. Less formal than 日誌.
旅行の日記をつけるのが趣味です。
My hobby is keeping a travel logbook.
A formal record book or register, often used for official logs like attendance or inspection records.
点検記録簿にサインしてください。
Please sign the inspection logbook.
The official record of a ship's voyage, including navigation, weather, and events.
The standard term for a ship's logbook, used in maritime contexts.
船長は航海日誌に位置を記入した。
The captain entered the position in the logbook.
A broader term for voyage records, sometimes used interchangeably with 航海日誌.
航海記録を整理する。
Organize the voyage logbook.
A record of trips, mileage, maintenance, or flight hours for a vehicle.
Used for operational logs of vehicles like buses, trucks, or taxis.
トラックの運行日誌を確認する。
Check the truck's logbook.
A loanword from English, often used for personal driving logs or in casual contexts.
ドライブログに走行距離を記録する。
Record the mileage in the logbook.
Specifically an aircraft logbook, used in aviation.
パイロットは航空日誌に飛行時間を書く。
The pilot writes the flight hours in the logbook.
A logbook used to track tasks, progress, or events in a professional or project setting.
The standard term for a work logbook, used in offices and factories.
業務日誌に今日の作業をまとめる。
Summarize today's tasks in the logbook.
Similar to 業務日誌, but often used for manual or field work logs.
現場の作業日誌をつける。
Keep a logbook at the worksite.
A logbook for personal activities like diving, hiking, or amateur radio.
A direct loanword from English, widely used for hobby logbooks (diving, radio, etc.).
ダイビングのログブックにスタンプをもらう。
Get a stamp in the diving logbook.
A general term for a record notebook, suitable for various hobbies.
登山の記録帳をつけている。
I keep a mountaineering logbook.
日誌 (にっし) is a formal daily log, often used in business or official contexts. 日記 (にっき) is a personal diary. Using 日記 for a work logbook can sound unprofessional.
会社では日誌をつけるが、家では日記を書く。
At work I keep a logbook, but at home I write a diary.
The English word 'logbook' is often translated as ログブック, but this is mainly for hobbies or imported concepts. In traditional Japanese contexts, use 日誌 or specific compound words.
航海日誌はログブックとも呼ばれる。
A ship's logbook is also called a 'logbook'.