Open English Wordnet
Nouns
(n)discussion, treatment, discoursean extended communication (often interactive) dealing with some particular topic“the book contains an excellent discussion of modal logic”, “his treatment of the race question is badly biased”
Verbs
(v)discourse, talk about, discussto consider or examine in speech or writing“The author talks about the different aspects of this question”, “The class discussed Dante's ‘Inferno’”
(v)hold forth, discourse, dissertatetalk at length and formally about a topic“The speaker dissertated about the social politics in 18th century England”