| Rating | Solver | Clue |
|---|---|---|
| COLLOQUY | Formal discussion | |
| DEBATE | Formal discussion | |
| DISSERTATION | A formal or elaborate argumentative discourse, oral or written; a disquisition; an essay; a discussion; as, Dissertations on the Prophecies. | |
| DISQUISITION | A formal or systematic inquiry into, or discussion of, any subject; a full examination or investigation of a matter, with the arguments and fac... |