n. A running over a subject in speech; hence, a communication of thoughts by words; expression of ideas; mutual intercourse; talk; conversation.n. A running over in the mind of premises and deducing of conclusions; the exercise of, or an act of exercising, the logical or reasoning faculty; hence, the power of reasoning from premises; rationality.n. A formal discussion or treatment of a subjeet; a dissertation, treatise, homily, sermon, or the like: as, the discourse of Plutarch on garrulity, of Cicero on old age; an eloquent discourse.n. Debate; contention; strife.n. Intercourse; dealing; transaction.To hold discourse; communicate thoughts or ideas orally, especially in a formal manner; treat in a set manner; hold forth; expatiate; converse: as, to discourse on the properties of the circle; the preacher discoursed on the nature and effect of faith.To treat of or discuss a subject in a formal manner in writing.To narrate; give a relation; tell.To reason; argue from premises to consequences.To treat of; talk over; discuss.To utter or give forth.To talk or confer with.n. That sort of mental operation, performed by one person or by several, in which a line of thought is followed out.