Roget's Thesaurus: Entry 595 (Dissertation)

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#595. Dissertation. -- N. dissertation, treatise, essay; thesis, theme; monograph, tract, tractate[obs], tractation[obs]; discourse, memoir, disquisition, lecture, sermon, homily, pandect[obs]; excursus.

commentary, review, critique, criticism, article; leader, leading article; editorial; running commentary.

investigation &c. (inquiry) 461; study &c. (consideration) 451; discussion &c. (reasoning) 476; exposition &c. (explanation) 522.

commentator, critic, essayist, pamphleteer.

V. expound upon a subject, dissert upon a subject[obs], descant upon a subject, write upon a subject, touch upon a subject; treat a subject, treat a subject thoroughly, treat of a subject, take up a subject, ventilate a subject, discuss a subject, deal with a subject, go into a subject, go into a subject at length, canvass a subject, handle a subject, do justice to a subject.

hold forth[oral dissertation], discourse, delve into.

Adj. discursive, discoursive[obs]; disquisitionary[obs]; expository.