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 first Filipino to graduate from Harvard, Marcial Lichauco kept a diary of life in Manila during the Japanese occupation. James M. Scott, WSJ, "Five Best: James M. Scott," 8 Nov. 2018 Gastroenterologist Philipp Schwabl and his colleagues asked their participants to keep a food diary for a week before packaging up their poop in a plastic-free sample kit and shipping it to Vienna. Cathleen O'grady, Ars Technica, "Plastic found in the poop of eight people from eight different countries," 24 Oct. 2018 His dark night of the soul begins with his decision to keep a diary and leads him to contemplate an act of violent, suicidal political extremism. New York Times, "‘First Reformed’ Asks, Can God Forgive Us? Its Director Has an Answer," 20 June 2018 The study was published in the journal Energy Research and Social Science and required some of its participants to keep diaries. Fox News, "Netflix is killing your sex life: study," 7 May 2018 When Condor was cast, Han put together a To All the Boys get-ready pack with Korean snacks, candles, a diary, stationary, and Korean sheet masks to help her channel Lara Jean's spirit. Alyse Whitney, Glamour, "To All the Boys I've Loved Before," 24 Aug. 2018 The size alone will shock you, but really, thumbing through each season's issue is an experience unto itself, akin to somehow stumbling upon Gwyneth Paltrow's diary or, say, being asked to house-sit for Kim Kardashian West. Candace Braun Davison, House Beautiful, "12 Things Everyone Thinks When Flipping Through The Restoration Hardware Catalog," 2 Aug. 2018 This is the first time that the diary, written from late 1922 to early 1923 and not intended for publication, has been published in English. Jessica Spitz /, NBC News, "Travel diaries reveal Einstein's racist views," 13 June 2018 The archives contain diaries, memoirs, artifacts, letters and uniforms. Mary Jane Brewer, cleveland.com, "James Banks brings history to life: Medina Local Legends," 1 May 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

15 Jan 2019

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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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More from Merriam-Webster on diary

Rhyming Dictionary: Words that rhyme with diary

Thesaurus: All synonyms and antonyms for diary

Spanish Central: Translation of diary

Nglish: Translation of diary for Spanish Speakers

Britannica English: Translation of diary for Arabic Speakers

Britannica.com: Encyclopedia article about diary

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).


marked by shyness and lack of polish

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