The word centralisation 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: 20
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (307 words)
acaters, aconite, actants, actions, aeolian, aerials, aileron, airiest, airline, alanine, alecost, alicant, aloetic, altoist, ancient, aniline, anionic, anneals, anoints, antlers, antlion, antsier, arcsine, arctans, areolas, arsenal, arsenic, article, artiest, artisan, asinine, atoners, atonias, atonics, atresia, attains, attires, calorie, canines, cannier, cannoli, canoers, canters, cantles, cantons, cantors, carinae, carinal, carnies, cartels, cartons, castile, catenin, cations, cattail, cattier, celosia, central, certain, ciliate, cistern, citator, citrate, citrine, citrons, cittern, clarets, clarion, clatter, clients, clitter, cloners, clotter, coalers, coalier, coalise, coalite, coaltar, coarsen, coastal, coaster, coiners, colitis, colters, consent, contain, content, contest, corneal, corneas, cornets, cornett, costate, cotters, cranial, cratons, cretins, cristae, cronies, eclairs, elastic, elastin, elation, elicits, elision, elitist, enactor, ensnarl, entails, entrain, entrant, eosinic, erotica, erotics, escolar, estriol, iconist, incants, incisor, inciter, incites, incline, inertia, inlines, inosine, inosite, insaner, instant, instate, intents, interns, intoner, intones, intorts, introns, iolites, ioniser, iratest, irenics, irisate, ironies, isolate, italics, laciest, lacinia, lactase, lactate, lactone, lactose, laicise, lancers, lancets, lantern, lariats, latents, latites, latrine, lattice, leantos, lection, liaison, linnets, lintier, lionets, lionise, litters, loaners, locates, loiters, nailers, nailset, nascent, nastier, nations, natters, nattier, nectars, niacins, nicosia, nictate, nitrate, nitrite, nittier, noisier, nonarts, nonlate, nonliar, nonreal, nonsale, norites, nostril, notices, octanes, octants, oilcans, oiliest, onliner, oracles, orients, orleans, otarine, raciest, rations, ratline, rattail, rattles, rattons, realist, recants, recital, recoals, recoats, recoils, recoins, reliant, reloans, renails, rentals, reslant, restain, retails, retains, retilts, retinal, retinas, retinol, retints, retoast, retotal, ricotta, rosacea, rosalic, rotates, salient, saltate, saltcat, saltern, saltier, satanic, satiate, satiric, scalier, scanner, scanter, scarlet, scatter, scoriae, scrotal, sealant, sealion, section, senator, sericin, silicon, siltier, sirloin, slatier, slitter, snotter, solacer, solicit, stainer, stannic, starlet, starlit, startle, statice, station, stencil, sternal, stilter, stoical, stonier, straint, striate, tactile, tailors, talents, tanners, tannest, tantric, tartans, tastier, teacart, tenants, tension, tertial, tetanic, tilters, tiniest, tinners, tinnier, tinters, tintier, titanic, toaster, toenail, toilers, toilets, trances, transit, treason, trenail, tricots, triones, trisect, tsarina