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.
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.
A formal record book or register, often used for official logs like attendance or inspection records.
Please sign the inspection logbook.
The official record of a ship's voyage, including navigation, weather, and events.
A record of trips, mileage, maintenance, or flight hours for a vehicle.
Used for operational logs of vehicles like buses, trucks, or taxis.
A logbook used to track tasks, progress, or events in a professional or project setting.
A logbook for personal activities like diving, hiking, or amateur radio.
A direct loanword from English, widely used for hobby logbooks (diving, radio, etc.).
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.
At work I keep a logbook, but at home I write a diary.
My hobby is keeping a travel logbook.
The standard term for a ship's logbook, used in maritime contexts.
The captain entered the position in the logbook.
A broader term for voyage records, sometimes used interchangeably with 航海日誌.
Organize the voyage logbook.
Check the truck's logbook.
A loanword from English, often used for personal driving logs or in casual contexts.
Record the mileage in the logbook.
Specifically an aircraft logbook, used in aviation.
The pilot writes the flight hours in the logbook.
The standard term for a work logbook, used in offices and factories.
Summarize today's tasks in the logbook.
Similar to 業務日誌, but often used for manual or field work logs.
Keep a logbook at the worksite.
Get a stamp in the diving logbook.
A general term for a record notebook, suitable for various hobbies.
I keep a mountaineering logbook.
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.
A ship's logbook is also called a 'logbook'.