1. a book in which daily transactions, events, or activities are recorded
Usage: business; accounting
2. a diary or personal journal for recording daily events

Examples

• The accountant updated the daybook with all of yesterday’s sales.
• She kept a detailed daybook of her business expenses.
• The store manager reviewed the daybook to track daily transactions.
• He wrote in his daybook every evening before bed.
• The daybook showed a steady increase in customer visits.
• Her grandmother’s daybook contained fascinating stories from the 1940s.