1. plural of datebook; small books or calendars used for recording appointments, schedules, and important dates

Examples

• She keeps several datebooks to track her work and personal schedules.
• The office supply store sells various types of datebooks and planners.
• Students often use datebooks to remember assignment due dates.
• His collection of old datebooks shows how busy he was each year.
• Many people have switched from paper datebooks to digital calendars.
• The secretary distributed new datebooks to all the employees.