Word
treatise
Phoneticstrea·tise, stress on the first syllable
US/ˈtɹitəs/
UK/tɹˈiːtɪz/
Countable noun
Definition
n. a long and serious piece of writing that explains a subject in great detail. It is usually more formal and deeper than a simple essay.
n. a formal and systematic written discourse on a specific subject, generally longer and more exhaustive than an essay. It aims to present a thorough investigation of principles or facts.
Examples
“He wrote a long treatise on the history of local architecture.”
“The professor published a definitive treatise on international law that became a standard text for graduate students.”
“The philosopher's final work was a dense treatise exploring the intersection of ethics and aesthetics, challenging centuries of established thought on the nature of beauty.”
Examples
simple
“He wrote a long treatise on the history of local architecture.”
contextual
“The professor published a definitive treatise on international law that became a standard text for graduate students.”
complex
“The philosopher's final work was a dense treatise exploring the intersection of ethics and aesthetics, challenging centuries of established thought on the nature of beauty.”
Usage
Typically paired with the preposition 'on' to indicate the subject matter.
Real-World Examples
“There is an unconvincing scene in which James and Nora spend New Year’s Eve with Talulah, and a Black American character pops up briefly to deliver a clunky treatise on historical legacies.” “In his treatise On Agriculture (De Re Rustica, 60–65 B.C.), the Roman writer Columella described a "pusula" disease affecting sheep—which we now assume to be sheeppox.” “Throughout this political treatise Marsilius criticized the power of the clergy by insisting that they were only one part of society, and as such, bound by the laws the entire community enacted.” Etymology
From Middle English tretys, from Anglo-Norman tretiz and Old French traitis (“treatise, account”), from traitier (“to deal with, treat”).
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.
Domain
- Exam level
- CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.C1 AdvancedIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.7.0–8.0TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 5.0–5.595–113TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.945–990
- Frequency
- Frequent
- Level
- C1 · Advanced
- Updated
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QR code
englishreference.com/q/treatise