abjure, air, analyze, answer, answer conclusively, argue down, assert the contrary, be at cross-purposes, be contrary to, be opposed to, belie, break, call into question, canvass, challenge, clash, comment upon, conflict, conflict with, confound, confute, consider, contest, contradict, contrapose, contrast with, contravene, counter, counteract, counterbalance, countercheck, counterpoise, counterpose, countervail, counterwork, cross, crush, deal with, debate, defeat, deliberate, deliberate upon, demolish, deny, disaffirm, disallow, disavow, disclaim, disconfirm, discourse about, discuss, dismiss, disown, dispose of, disprove, dispute, evert, examine, exchange views, finish, floor, forswear, gainsay, go into, handle, impugn, investigate, join issue upon, juxtapose in opposition, knock around, negate, nonplus, not accept, not admit, nullify, offset, oppose, oppugn, overthrow, overturn, overwhelm, parry, pass under review, play at cross-purposes, put to silence, question, rap, reason, reason about, reason the point, rebut, recant, reduce to silence, refuse to admit, refute, reject, renounce, repudiate, retract, review, revoke, run counter to, set off, settle, shut up, sift, silence, smash all opposition, squash, squelch, study, subvert, take back, take issue with, take up, talk, talk about, talk of, talk over, thresh out, traverse, treat, undermine, upset, ventilate
be discordant, disagree, come amiss, clash, jar, jostle, pull different ways, conflict, have no measures with, misunderstand one another, live like cat and dog, differ, dissent, have a bone to pick, have a crow to pluck with, fall out, quarrel, dispute, litigate, controvert
, squabble, wrangle, jangle, brangle, bicker, nag, spar, have words, with, fall foul of, split, break with, break squares with, part company with, declare war, try conclusions, join issue, put in issue, pick a quarrel, fasten a quarrel on, sow dissension, stir up dissension, embroil, entangle, disunite, widen the breach, set at odds, set together by the ears, set against, pit against, get into hot water, fish in troubled waters, brawl, kick up a row, kick up a dust, turn the house out of window, be discordant, jar.
reason, argue, discuss, debate, dispute, wrangle, argufy, bandy words, bandy arguments, chop logic, hold an argument, carry on an argument, controvert
, canvass, comment upon, moralize upon, spiritualize, consider, open a discussion, open a case, try conclusions, join issue, be at issue, moot, come to the point, stir a question, agitate a question, ventilate a question, torture a question, take up a side, take up a case, contend, take one's stand upon, insist, lay stress on, infer, follow from.
confute, refute, disprove, parry, negative, controvert
, rebut, confound, disconfirm, redargue, expose, show the fallacy of, defeat, demolish, break, overthrow, overturn scatter to the winds, explode, invalidate, silence, put to silence, reduce to silence, clinch an argument, clinch a question, give one a setdown, stop the mouth, shut up, have, have on the hip, not leave a leg to stand on, cut the ground from under one's feet, be confuted, fail, expose one's weak point, show one's weak point, counter evidence.
deny, contradict, contravene, controvert
, give denial to, gainsay, negative, shake the head, disown, disaffirm, disclaim, disavow, recant, revoke, dispute, impugn, traverse, rebut, join issue upon, bring in question, call in question, give the lie in his throat, give one the lie in his throat, deny flatly, deny peremptorily, deny emphatically, deny absolutely, deny wholly, deny entirely, give the lie to, belie, repudiate, set aside, ignore, rebut, qualify, refuse, recuse.