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date·book | \ ˈdāt-ˌbu̇k 
\
\ plural datebooks
Definition of datebook
: 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 also : a place on a computer or other device for entering similar information … 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
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More Definitions for datebook
datebook
nounEnglish Language Learners Definition of datebook
: a small book or calendar in which people write dates, appointments, etc., that they have planned or scheduled
See the full definition for datebook in the English Language Learners Dictionary
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Time Traveler for datebook
The first known use of datebook was in 1884
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