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diary

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noun [countable] British English pronunciation: diary /ˈdaɪəri/ 
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singulardiary
pluraldiaries
  1. 1
    a book in which you write your experiences each day
    keep a diary:

    She’s kept a diary since she was twelve.

    Thesaurus entry for this meaning of  diaryThesaurus entry for this meaning of diary
  2. 2
    British a book that has spaces or pages for each day of the year, where you can write down things that you have to do. The usual American word is appointment book or datebook

    ‘Can you make the meeting on the fourteenth?’ ‘I’ll just check my diary to see whether I’m free.’

    Thesaurus entry for this meaning of  diaryThesaurus entry for this meaning of diary

This is the British English definition of diary. View American English definition of diary.

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