diurnal 1 of 2

adjective

dī-ˈər-nᵊl How to pronounce diurnal (audio)
Definition of diurnalnext
as in daily
occurring, done, produced, or appearing every day a love as constant and certain as the diurnal tides

Synonyms & Similar Words

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Antonyms & Near Antonyms

diurnal

2 of 2

noun

as in periodical
a publication that appears at regular intervals a collection of diurnals containing essays by preeminent 19th-century American writers and thinkers

Synonyms & Similar Words

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of diurnal
Adjective
During its 12-day journey, SE2 completed one full day-night diurnal cycle over New Mexico and three consecutive diurnals off the Brazilian coast. — Chris Young, Interesting Engineering, 14 Apr. 2026 Overnight lows will drop into the low 40s under clear skies, marking a 30-degree diurnal swing in some spots. — Senior Newsroom Meteorologist, San Francisco Chronicle, 3 Feb. 2026 This doubling of the diurnal might happen once a year. — Lauren Bostwick, CBS News, 18 Jan. 2026 The watery and stable microclimate within the caves long ago could have hosted microbial colonies, and today the caves are protected from the extreme conditions on Mars' surface, such as wildly different diurnal temperatures, dust storms and solar ultraviolet and cosmic-ray radiation. — Keith Cooper, Space.com, 24 Nov. 2025 See All Example Sentences for diurnal
Recent Examples of Synonyms for diurnal
  1. daily
  2. periodical
  3. newspaper
  4. journal
  5. book
  6. magazine
Adjective
  • The morning high tide will be the highest of the two daily tides.
    — NC Weather Bot, Charlotte Observer, 24 Oct. 2026
  • Sectarian tensions and the disrupting force of the Cold War plunged the Middle Eastern nation into decades of armed conflict, with a chilling effect on daily life.
    — Shy Clara Thompson, Pitchfork, 23 Oct. 2026
Definition of daily
Noun
  • Gates, who now stewards the photographic archives and periodicals of the Johnson Publishing Company, has exhibited it in different forms.
    — Jacqui Palumbo, CNN Money, 22 Oct. 2026
  • Declonius Peck, its beloved editor-in-chief, has gone to prison for embezzlement, and his evil twin, Salton, has assumed management of the family business, along with the 39 editors who curate the periodical.
    — Leigh Haber, Los Angeles Times, 13 Oct. 2026
Definition of periodical
Noun
  • All but one mainstream newspaper have criticized the revisions, and media surveys show a large majority of the public support female monarchs or maternal-line succession.
    — ABC News, ABC News, 24 Oct. 2026
  • Some Ukrainian officials told the newspaper that the system had not been restored to full functionality but was working at higher speeds than under the cap.
    — Reuters, NBC news, 23 Oct. 2026
Definition of newspaper
Noun
  • In-store events also offer shoppers the chance to gather and make something by hand—from personalized ornaments to holiday junk journals.
    — Michele Laufik, Martha Stewart, 26 Oct. 2026
  • The three research articles, which were published today in the AHA’s journal Circulation, outline how all these shifts connect and increase heart disease risk.
    — Helen Carefoot, Flow Space, 26 Oct. 2026
Definition of journal
Noun
  • In her latest book, Harvard historian Jill Lepore argues that Big Tech now controls the United States—and, by extension, the entire planet.
    — Nina Verdelli, Vanity Fair, 24 Oct. 2026
  • My books include The Underground Guide to Color Printers (Addison-Wesley), Troubleshooting Your PC (Microsoft Press), and Faster, Smarter Digital Photography (Microsoft Press).
    — M. David Stone, PC Magazine, 24 Oct. 2026
Definition of book
Noun
  • Local and national campaign staff have feuded over how to showcase Jackson from the early days of the campaign, infighting detailed in an August New York magazine story.
    — Julia Terruso, Time, 26 Oct. 2026
  • The prestigious Ballon d’Or is handed out annually by French magazine France Football to the best men’s and women’s soccer players.
    — PJ Green, Kansas City Star, 26 Oct. 2026
Definition of magazine

Browse Nearby Words

ditzy
diurnal
diurnals
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“Diurnal.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/diurnal. Accessed 29 Oct. 2026.

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