an 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"
an exchange of views on some topic; "we had a good discussion"; "we had a word or two about it"
a statement that is assumed to be true and from which a conclusion can be drawn; "on the assumption that he has been injured we can infer that he will not to play"
take something as preexisting and given
set forth beforehand, often as an explanation; "He premised these remarks so that his readers might understand"