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English Wikipedia has an article on:


  • IPA(key): /ˈdaɪ.ə.ɹi/, /ˈdaɪ.ɹi/
    • (file)
  • Rhymes: -aɪ.əɹi

Etymology 1[edit]

From Latin diārium (a daily allowance for soldiers, in Late Latin also ‘diary’), neuter of *diārius, from diēs (a day) (whence also journal). Cognate with Spanish diario (daily; diary).


diary (plural diaries)

  1. A daily log of experiences, especially those of the writer.
    Synonyms: daybook, journal
    They kept separate diaries. His was on paper and her diary was on her computer's hard drive.
    • 2005 January 30, Jef Biederman, “Feng Shui Is Like So Passe”, in Totally Spies!: Undercover, season 3, episode 19, spoken by Alexandra “Alex” (Andrea Baker as Clover and Katie Griffin), Marathon Media, via Teletoon:
      No, I’m just going over the stuff Tara wrote in my diary.
      She’s writing your diary? Could you be any lazier?
  2. (Britain, Canada) A personal organizer or appointment diary.
    Synonym: (more common term in Canada) agenda
    • 2004, Victoria Kidwell, Homework, page 29:
      It is recommended that teachers and pupils are issued with homework diaries to help implement and monitor the homework timetable.
Coordinate terms[edit]
Derived terms[edit]
Related terms[edit]
  • Indonesian: diari


diary (third-person singular simple present diaries, present participle diarying, simple past and past participle diaried)

  1. (intransitive) To keep a diary or journal.
    • 2015, Hugh O'Donovan, Mindful Walking:
      As part of her mindful movement practise, diarying is important to Sarah. "It gives me a chance to see what is going on, to reflect on my experience."

Etymology 2[edit]

From Latin diārius.[1]


diary (not comparable)

  1. (obsolete) Lasting for one day.
    • 1605, Francis Bacon, a letter to the Lord Chancellor, touching the History of Britain:
      the offer of a usurpation, though it were but as a diary ague


  1. ^ diary, adj.”, in OED Online Paid subscription required, Oxford, Oxfordshire: Oxford University Press, launched 2000.

Further reading[edit]