di·​a·​ry | \ˈdī-(ə-)rē \
plural diaries

Definition of diary 

1 : a record of events, transactions, or observations kept daily or at frequent intervals : journal especially : a daily record of personal activities, reflections, or feelings

2 : a book intended or used for a diary

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Synonyms for diary


daybook, journal

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Examples of diary in a Sentence

has diligently kept a diary since she was 15

Recent Examples on the Web

The play/movie, built around the songs of ABBA, centers on a young woman who invites three men, all of whom might be her biological father, to her wedding after finding her mother's racy diary from the summer before she was born. Kayleigh Roberts, Marie Claire, "Lily James Talks About the Pressure of Playing a Young Meryl Streep," 13 Oct. 2018 Ahead, scroll through Dinah's diary from her Body Party hosting gig — in her own words. Teen Vogue, "Dinah Jane Hosts the Teen Vogue x Snapchat Body Party Event at New York Fashion Week 2018," 20 Aug. 2018 Vancouver officials also ask about 2,500 people every year to complete a transportation diary that provides an account of their travels in the past week. Michelle Baruchman, The Seattle Times, "What we can learn from Seattle’s bike-counter data," 19 Aug. 2018 More than 3,000 diaries as part of a winter survey indicate that radio is a key 'lifeline' during extreme weather. Justino Aguila, Billboard, "Nielsen's Latest Puerto Rico Market Survey Sees Rise in News Radio Stations Post-Hurricane Maria," 14 June 2018 There’s perhaps no one better suited for the throwback glamour of Paris Couture Week than Chachki—see for yourself and look at her exclusive photo diary above. Rachel Hahn, Vogue, "Violet Chachki Takes on Paris Couture Week—And It’s Fabulous," 11 July 2018 Likewise, the prison diary of Vibia Perpetua of Carthage, who was martyred in 203 at the age of 21 after becoming a Christian convert, recorded both her inner thoughts and daily life, making her the founding mother of prison literature. Amanda Foreman, WSJ, "Literature Behind Bars," 12 July 2018 In their diaries, Bostonians of the 1800s described being part of the crowds at concerts as part of the pleasure of attendance. Nancy Baym, WIRED, "Book Excerpt: How Music Fans Built the Internet," 10 July 2018 Those shopping bags on the floor, sent by the German artist Maria Eichhorn, are filled with empty tea boxes, plastic water bottles, and chewing gum wrappers discarded by people installing the show, a kind of behind-the-scenes gallery diary. Joseph Giovannini, New York Times, "Swiss Institute Has a New Home Ready-Made for Art," 28 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'diary.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of diary

1581, in the meaning defined at sense 1

History and Etymology for diary

Latin diarium, from dies day — more at deity

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Statistics for diary

Last Updated

19 Nov 2018

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Time Traveler for diary

The first known use of diary was in 1581

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English Language Learners Definition of diary

: a book in which you write down your personal experiences and thoughts each day


di·​a·​ry | \ˈdī-ə-rē, ˈdī-rē\
plural diaries

Kids Definition of diary

1 : a daily written record especially of personal experiences and thoughts

2 : a book for keeping a record of experiences and thoughts

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Comments on diary

What made you want to look up diary? Please tell us where you read or heard it (including the quote, if possible).


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