discourse
/dɪsˈkɔː(ɹ)s/
Verbal exchange, conversation.
Expression in words, either speech or writing.
A formal lengthy exposition of some subject, either spoken or written.
The preacher gave us a long discourse on duty.
Any rational expression, reason.
An institutionalized way of thinking, a social boundary defining what can be said about a specific topic (after Michel Foucault).
Dealing; transaction.