Talk at length and formally about a topic.

synonyms: discourse, dissertate.

Roget 537: teach, instruct, educate, edify, school, tutor; cram, prime, coach; enlighten etc. (inform) 527.    inculcate, indoctrinate, inoculate, infuse, instill, infix, ingraft^†, infiltrate; imbue, impregnate, implant; graft, sow the seeds of, disseminate.    given an idea of; put up to, put in the way of; set right.    sharpen the wits, enlarge the mind; give new ideas, open the eyes, bring forward, teach the young idea how to shoot" [Thomson]; improve etc. 658.    expound etc. (interpret) 522; lecture; read a lesson, give a lesson, give a lecture, give a sermon, give a discourse; incept^†; hold forth, preach; sermonize, moralize; point a moral.    train, discipline; bring up, bring up to; form, ground, prepare, qualify; drill, exercise, practice, habituate, familiarize with, nurture, drynurse^†, breed, rear, take in hand; break, break in; tame; preinstruct^†; initiate; inure etc. (habituate) 613.    put to nurse, send to school.    direct, guide; direct attention to etc. (attention) 457; impress upon the mind, impress upon the memory; beat into, beat into the head; convince etc. (belief) 484.    [instructional materials] book, workbook, exercise book.    [unnecessary teaching] preach to the wise, teach one's grandmother to suck eggs, teach granny to suck eggs; preach to the converted.    ... show more

Roget 595: expound upon a subject, dissert upon a subject^†, descant upon a subject, write upon a subject, touch upon a subject; treat a subject, treat a subject thoroughly, treat of a subject, take up a subject, ventilate a subject, discuss a subject, deal with a subject, go into a subject, go into a subject at length, canvass a subject, handle a subject, do justice to a subject.    hold forth [oral dissertation], discourse, delve into.    ... show more

Roget 582: speak of; say, utter, pronounce, deliver, give utterance to; utter forth, pour forth; breathe, let fall, come out with; rap out, blurt out have on one's lips; have at the end of one's tongue, have at the tip of one's tongue.    break silence; open one's lips, open one's mouth; lift one's voice, raise one's voice; give the tongue, wag the tongue; talk, outspeak^†; put in a word or two, hold forth; make a speech, deliver a speech etc. n.; speechify, harangue, declaim, stump, flourish, recite, lecture, sermonize, discourse, be on one's legs; have one's say, say one's say; spout, rant, rave, vent one's fury, vent one's rage; expatiate etc. (speak at length) 573; speak one's mind, go on the stump, take the stump [U.S.].    soliloquize etc. 589; tell etc. (inform) 527; speak to etc. 586; talk together etc. 588.    be eloquent etc. adj.; have a tongue in one's head, have the gift of the gab etc. n.. pass one's lips, escape one's lips; fall from the lips, fall from the mouth.    ... show more