n. 25B6; noun
they prolonged their discourse outside the door : DISCUSSION, conversation, talk, dialogue, conference, debate, consultation; parley, powwow, chat; informal confab; formal confabulation, colloquy; archaic converse.
a discourse on critical theory : ESSAY, treatise, dissertation, paper, study, critique, monograph, disquisition, tract; lecture, address, speech, oration; sermon, homily.
25B6; verb
he discoursed at length on his favourite topic : HOLD FORTH, expatiate, pontificate; talk, give a talk, give a speech, lecture, sermonize, preach; informal spout, sound off; formal perorate.
Edward was discoursing with his friends : CONVERSE, talk, speak, debate, confer, consult, parley, chat; formal confabulate.