Treatise

//ˈtɹiːtɪs// noun

noun ·Uncommon ·Advanced level

Definitions

Noun
  1. 1
    A formal, usually lengthy, systematic discourse on some subject.

    ""As you cannot make a speech, you must," said Henrietta, "put it into a treatise.""

  2. 2
    a formal exposition wordnet

Synonyms

All synonyms
apercuarticlebookcauseriedescantdiscourse

Example

More examples

"The definitive treatise was written by someone with no formal education in the subject."

Etymology

From Middle English tretys, from Anglo-Norman tretiz and Old French traitis (“treatise, account”), from traitier (“to deal with, treat”).

Related phrases

learned treatise

More for "treatise"

SynonymsSentencesPronunciationTranslate

Next best steps

Find stronger synonymsSee usage examplesCheck pronunciationBrowse writing guides

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.