noun / verb
discourse
DIS-kors/ˈdɪskɔːrs/
Detailed discussion of a subject in speech or writing.
Their discourse centers on the bridge model between them.

Etymology
The original image is running to and fro, which developed into going over a subject in thought or speech. Discourse thus came to mean an extended, formal treatment of a subject.
In context
a discourse given by the brother Orator was as poignant a satire on superstition and credulity as if it had been written by Voltaire.
More examples
- She discourses at length on the history of the town.
- Their political discourse remains respectful despite disagreement.
- The seminar encourages informed discourse about the issue.
Forms
discourse · discourses · discoursed · discoursing
Similar words
- discussion
- A more everyday word for examining a subject in speech or writing.
- treatise
- A treatise is a systematic written work; discourse also includes extended spoken discussion.