Synonyms and related words :
aggravate, annoy, annoyer, badger, badgerer, bait, be at, bedevil, beset, bother, bristle, brown off, bug, bully, bullyrag, burn up, chivy, devil, discompose, distemper, disturb, dog, exasperate, exercise, fash, get, gripe, harass, harasser, harrier, harry, heckle, heckler, hector, hound, irk, miff, molest, nag, needle, nettle, nudnik, peeve, persecute, persecutor, pest, pester, pesterer, pick on, pique, plague, plaguer, pluck the beard, pother, provoke, ride, rile, roil, ruffle, sadist, tease, teaser, torment, tormentor, try the patience, tweak the nose, vex, worry