Definition of diary in English:


Syllabification: di·a·ry
Pronunciation: /ˈdī(ə)rē

noun (plural diaries)

1A book in which one keeps a daily record of events and experiences: I resolved to keep a diary of events during the war
More example sentences
  • In either case, keep a diary or other written record of events.
  • All participants completed a stress scale questionnaire and kept a daily food diary.
  • Throughout the study, participants kept a daily symptom diary and completed a quality-of-life questionnaire.
journal, memoir, chronicle, log, logbook, history, annals, record
1.1A datebook.
More example sentences
  • Having the radio operator's diary from her father's unit, she knew where to go.
  • Pulling out the small spiral diary, she opened it up to the first page.
  • Now, after a winter away from performing, Suzy has a diary full of engagements once more.
appointment book, engagement book, organizer, personal organizer, daybook, PDA
trademark daytimer


late 16th century: from Latin diarium, from dies 'day'.

Definition of diary in: