The word differentiators is playable in Words With Friends™, no blanks required. Because it is longer than 7 letters, you would have to play off an existing word or do it in several moves.
Words With Friends™ Letter Score: 23
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (358 words)
adonise, adorers, adorner, aeriest, affined, affines, affords, affront, airiest, airside, aneroid, aniseed, anodise, antsier, arenite, aridest, artiest, artsier, astride, astroid, atoners, attends, attired, attirer, attires, daffier, daftest, dairies, darners, darters, deafens, deafest, dearest, dearies, defeats, defiant, defiers, definer, defines, defrost, deftest, deifier, deifies, deities, denarii, deniers, denoise, denotes, dentate, dentist, dernier, derries, desirer, destaff, destain, destine, detains, detents, detorts, detrain, diaries, diarist, diester, dieters, dieties, dietine, dietist, differs, diorite, dirtier, dirties, disrate, distant, distort, ditsier, ditties, dittoes, donairs, donates, dotiest, dotters, dottier, draftee, drafter, drainer, drifter, earners, earnest, eastern, edifier, edifies, edition, editors, efforts, endears, endorse, entreat, entries, erotise, errands, errants, estrone, etaerio, fadeins, faeries, fainted, fainter, fairest, fairies, fattens, fattier, fatties, feasted, fedoras, fenders, ferrets, ferried, ferries, ferrite, fetters, fierier, fifteen, fifties, finders, fireant, fitters, foisted, foister, fondest, forfeit, forints, forseen, forties, fraters, freesia, fretted, fretter, friends, fritter, fronted, frosted, froster, inditer, indites, indorse, indraft, inerter, inertia, inosite, inroads, insider, insofar, instate, instead, intorts, iodines, iodiser, iodites, ionised, ioniser, iratest, irisate, ironers, ironies, iterate, nastier, natters, nattier, nearest, neatest, nerdier, netters, niftier, nitrate, nitride, nitrite, nittier, noisier, norites, notated, offends, offense, offered, offside, offsite, oftener, ordains, orients, ornater, otarine, rafters, raiders, rainier, randier, ranters, rations, ratters, rattier, rattons, readers, readier, readies, readorn, rearise, rearose, reasted, redates, redraft, redries, reedits, refinds, refined, refiner, refines, refired, refires, refrain, refrets, refried, refries, reified, reifier, reifies, reinter, renders, renters, reoffer, rereads, rerents, rerinse, reroast, resider, restaff, restain, restart, restate, restore, retains, retards, retaste, retears, retinas, retints, retired, retires, retoast, retorts, retrade, retrain, retread, retreat, retried, retries, rioters, roadies, roasted, roaster, rodents, roisted, roister, roseate, rosette, rosined, rotated, rotates, rotters, saffron, sainted, sandier, sardine, sedater, senator, sendoff, seriate, serrate, snarfed, sniffed, sniffer, snifter, snorted, snorter, snotted, snotter, sortied, staffed, staffer, stained, stainer, standee, stander, starred, started, starter, station, stented, sterane, sterned, sterner, steroid, stiffed, stiffen, stiffer, stinted, stirred, stonier, storied, straint, striate, strider, stridor, taffies, tainted, tardier, tariffs, tarried, tarries, tasered, tastier, tearers, tearier, tenders, tenters, tentier, ternate, terrain, terrane, testier, tidiers, tidiest, tierods, tinders, tiniest, tinters, tintier, tirades, tireder, toasted, toaster, toffees, toffier, toffies, torrent, tradein, traders, trained, trainee, trainer, traitor, transit, treader, treason, treated, treater, triaene, trident, trienes, trifids, triones