trea·​tise ˈtrē-təs How to pronounce treatise (audio)
 also  -təz
: a systematic exposition or argument in writing including a methodical discussion of the facts and principles involved and conclusions reached
a treatise on higher education
obsolete : account, tale

Example Sentences

Recent Examples on the Web Much as Oswald Spengler had elevated the brooding schwarmerei of German café philosophers into a treatise, so Jünger took the rote form of the regimental memoir and affixed a bayonet to it. Thomas Meaney, Harper’s Magazine , 16 Feb. 2023 Superficially, the film is a treatise on technology run amok, although it is not told with any sort of real-world nuance. David Sims, The Atlantic, 7 Jan. 2023 Joseph earned his doctorate with a dissertation on St. Augustine and his professorship with a treatise on St. Bonaventure, the medieval Italian philosopher, theologian and priest who gave the church many of its intellectual underpinnings. Rachel Donadio, New York Times, 31 Dec. 2022 But not until the hook hits does the song really kick into high gear, and become an avant-garde dance-pop treatise for the ages. Andrew R. Chow, Time, 22 Nov. 2022 The show’s title refers in part to an ancient Japanese treatise that instructs landscapers to begin their designs by placing stones, and there are a few pictures that suggest Japanese formal gardens. Mark Jenkins, Washington Post, 17 Feb. 2023 For all its unfashionable New Age elements, readers return time and again to this 160-page treatise. Eleanor Cummins, The Atlantic, 3 Jan. 2023 People aiming for higher pay or a promotion may find winning career advice in a 500-year-old treatise that is often assigned reading for college freshmen. Kathryn Dill, WSJ, 24 Oct. 2021 Harry & Meghan absolutely can be viewed as a navel-gazey vanity project, a contradictory streaming treatise about the importance of privacy. Kristen Baldwin And Darren Franich,, 14 Dec. 2022 See More

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

Word History


Middle English tretis, from Anglo-French tretiz, alteration of tretez, traitet, from Medieval Latin tractatus, from Latin tractare to treat, handle

First Known Use

14th century, in the meaning defined at sense 1

Time Traveler
The first known use of treatise was in the 14th century

Dictionary Entries Near treatise

Cite this Entry

“Treatise.” Dictionary, Merriam-Webster, Accessed 27 Mar. 2023.

Kids Definition


trea·​tise ˈtrēt-əs How to pronounce treatise (audio)
: a book or article examining a subject carefully and completely
Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Challenging Standardized Test Words, Vol. 2

  • a pencil broken in half on top of a test answer sheet
  • The business’s new computer system proved not to be a panacea.
Spell It

Hear a word and type it out. How many can you get right?

Solve today's spelling word game by finding as many words as you can with using just 7 letters. Longer words score more points.

Can you make 12 words with 7 letters?