Definition of datebook
plural datebooks
: a small book or calendar in which one writes planned or scheduled dates, appointments, etc.
- Open my datebook to any day of the week and it's the same story: My daughter is running in a cross-country meet and my younger son is playing baseball.
- —Joyce Maynard
- … pull out your calendars or your digital datebook and mark Aug. 20 on your calendar because the MuckFest 5k is coming to town.
- —Rachel Wittrock
