An extended communication (often interactive) dealing with some particular topic:
— The book contains an excellent discussion of modal logic.

synonyms: discourse, treatment.

Roget 595: dissertation, treatise, essay; thesis, theme; monograph, tract, tractate^†, tractation^†; discourse, memoir, disquisition, lecture, sermon, homily, pandect^†; excursus.    commentary, review, critique, criticism, article; leader, leading article; editorial; running commentary.    investigation etc. (inquiry) 461; study etc. (consideration) 451; discussion etc. (reasoning) 476; exposition etc. (explanation) 522.    commentator, critic, essayist, pamphleteer.    ... show more

Roget 476: reasoning ratiocination rationalism; dialectics, induction, generalization.    discussion, comment; ventilation; inquiry etc. 461.    argumentation, controversy, debate; polemics, wrangling; contention etc. 720; logomachy^†; disputation, disceptation^†; paper war.    art of reasoning, logic.    process of reasoning, train of reasoning, chain of reasoning; deduction, induction, abduction; synthesis, analysis.    argument; case, plaidoyer^†, opening; lemma, proposition, terms, premises, postulate, data, starting point, principle; inference etc. (judgment) 480.    prosyllogism^†, syllogism; enthymeme^†, sorites^†, dilemma, perilepsis^†, a priori reasoning, reductio ad absurdum, horns of a dilemma, argumentum ad hominem [Lat.], comprehensive argument; empirema^†, epagoge^†.    [person who reasons] reasoner, logician, dialectician; disputant; controversialist, controvertist^†; wrangler, arguer, debater polemic, casuist, rationalist; scientist; eristic^†.    logical sequence; good case; correct just reasoning, sound reasoning, valid reasoning, cogent reasoning, logical reasoning, forcible reasoning, persuasive reasoning, persuasory reasoning^†, consectary reasoning^†, conclusive etc. 478; subtle reasoning; force of argument, strong point, strong argument, persuasive argument.    arguments, reasons, pros and cons.    ... show more

Roget 461: inquiry; request etc. 765; search, research, quest, pursuit etc. 622.    examination, review, scrutiny, investigation, indagation^†; perquisition^†, perscrutation^†, pervestigation^†; inquest, inquisition; exploration; exploitation, ventilation.    sifting; calculation, analysis, dissection, resolution, induction; Baconian method^†.    strict inquiry, close inquiry, searching inquiry, exhaustive inquiry; narrow search, strict search; study etc. (consideration) 451.    scire facias [Lat.], ad referendum; trial.    questioning etc. v.; interrogation, interrogatory; interpellation; challenge, examination, cross-examination, catechism; feeler, Socratic method, zetetic philosophy^†; leading question; discussion etc. (reasoning) 476.    reconnoitering, reconnaissance; prying etc. v.; espionage, espionnage [Fr.]; domiciliary visit, peep behind the curtain; lantern of Diogenes.    question, query, problem, desideratum, point to be solved, porism^†; subject of inquiry, field of inquiry, subject of controversy; point in dispute, matter in dispute; moot point; issue, question at issue; bone of contention etc. (discord) 713; plain question, fair question, open question; enigma etc. (secret) 533; knotty point etc. (difficulty) 704; quodlibet; threshold of an inquiry.    [person who questions] inquirer, investigator, inquisitor, inspector, querist^†, examiner, catechist; scrutator scrutineer scrutinizer^†; analyst; quidnunc [Lat.] etc. (curiosity) 455.    ... show more

Dutch: gesprek, dialoog, forum, bespreking, debat, discussie, betoog, vertoog

An exchange of views on some topic:
— We had a good discussion.

synonyms: give-and-take, word.

Polish: dysputacja, dyskusja, dysputa, debatowanie, debata