Definition of diary in English:


Syllabification: di·a·ry
Pronunciation: /ˈdīərē

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'.

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