accelerate, agent provocateur, aggrandize, alienate, amplify, anger, annoy, antagonize, arouse, augment, badger, bait, be at, bedevil, beef up, beset, blow up, bother, bristle, brown off, bug, build up, bullyrag, burn up, chafe, chivy, come between, complicate, concentrate, condense, consolidate, damage, deepen, deteriorate, devil, dilapidate, disaffect, discompose, distemper, disturb, disunite, divide, dog, double, embitter, endamage, enhance, enlarge, envenom, estrange, exacerbate, exaggerate, exasperate, exercise, fan the flame, fash, fret, frustrate, gall, get, grate, gripe, harass, harm, harry, heat up, heckle, hector, heighten, hop up, hot up, hound, huff, hurt, impair, incense, increase, inflame, infuriate, injure, intensify, irk, irritate, jazz up, key up, light the fuse, madden, magnify, make acute, make complex, make trouble, make worse, miff, molest, mount, multiply, nag, needle, nettle, nudzh, peeve, persecute, perturb, pester, pick on, pique, pit against, plague, pluck the beard, pother, provoke, put back, ramify, rankle, redouble, reinforce, ride, rile, rise, roil, rouse, ruffle, separate, set against, set at odds, set at variance, set on, set up, sharpen, sic on, soup up, sour, sow dissension, step up, stir the blood, stir up, stir up trouble, strengthen, tease, torment, triple, trouble, try the patience, tweak the nose, upset, vex, weaken, whet, work up, worry, worsen