expound

verb

1. (transitive)To set out the meaning of; to explain or discuss at length.

   “Today I'll expound at length the theory propounded last week.”

   ““[…] Some day, when you are tired of London, come down to Treadley, and expound to me your philosophy of pleasure over some admirable Burgundy I am fortunate enough to possess.””

   “Ramus, fascinated by Plato and by the dialogues in which Socrates expounds his ideas with as much simplicity as freedom, endeavoured to Socratise in his turn.”

   “The impossibility of explaining the Stern-Gerlach result is what he and Ehrenfest tried to show with their “little calculation”. This joint paper had a markedly Ehrenfestian character, as in it, after expounding several arguments, the issue remains open.”

2. (intransitive)To make a statement, especially at length.

   “He expounded often on the dangers of the imperial presidency.”

   “Fowler was also interested in metallurgy and the use of new materials that could withstand greater stresses, something he expounded on when giving his presidential address to the new Institution of Mechanical Engineers in 1927.”