The word responsibilities cannot be made in Words With Friends™. It is 16 letters long, too long to fit on a WordsWithFriends board (15 letters max).
Highest Scoring Words With Friends™ Play In The Letters responsibilities
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Seven Letter Word Alert: (230 words)
besorts, bespots, betoils, biolite, biotins, bipoles, bistros, bitsier, blesser, blesses, blisses, blister, boilers, boletes, bolster, bolters, bonelet, boneset, boniest, boreens, bossier, bristle, bristol, ebonies, elision, elopers, enlists, enrobes, entries, epistle, epsilon, erotise, estriol, estrone, ileitis, inepter, inosite, inserts, insists, insoles, inspire, insteps, iolites, ioniser, ionises, ironies, isospin, lenites, leptons, lesions, lessens, lessons, lessors, lintier, lioness, lionets, lionise, liriope, lispers, listens, lobster, loiters, lossier, nesters, nestles, netless, niobite, noblest, noisier, norites, nosiest, nostril, oiliest, onestep, openers, openest, orients, osseins, osselet, ostlers, pelites, pelters, penises, penlite, pentose, peonies, perlite, persist, persons, pesters, pestles, petiole, petless, petrels, petrols, pieless, pieties, pinitol, pinless, pioneer, pissier, pistils, pistols, pistons, pitiers, pitless, pleions, poesies, poetess, poetise, pointer, politer, possets, postern, posters, postils, poteens, preboil, prenote, present, presets, presses, priests, prisons, proline, pronest, protein, pterins, rebites, reblent, rebless, reboils, relents, relines, relists, renests, reopens, repents, repiles, repilot, repines, replies, replots, repoint, reposes, reposts, reptile, resents, resists, resoils, resoles, respelt, respins, respite, resplit, respots, resteps, retiles, retinol, ribless, riblets, riboses, risible, ropiest, roselet, rosiest, seitens, seniors, sensors, serpent, sessile, session, sestine, silents, siltier, sinless, sinters, sirloin, sissier, sisters, slopers, snipers, soirees, sonless, sorbets, sorbite, sorties, spinels, spinets, spinier, spinose, spirits, spleens, splines, splints, spoiler, spriest, sprints, sprites, stenose, stepson, stereos, sterile, sterols, stoners, stonier, stories, stripes, strobes, tensile, tensors, terpine, tieless, tiepins, tinsels, tipless, tipsier, toeless, toilers, tonsils, topless, topline, tossers, trebles, tresses, trienes, trilobe, triones, triples, tripole