The word tetralogies 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: 14
Highest Scoring Words With Friends™ Play In The Letters tetralogies
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Seven Letter Word Alert: (95 words)
aeriest, aerogel, aiglets, aigrets, altoist, areoles, artiest, attires, eaglets, egotist, elaters, elegist, elegits, elogies, elogist, erotise, estriol, etaerio, gaiters, galette, gaolers, garotte, gearset, gelates, gelatos, geostat, gestalt, gestate, glister, glitter, gloater, glories, glottis, goalies, goatees, goiters, goitres, goriest, gristle, iratest, isolate, iterate, largest, latites, legates, letters, ligates, litters, loiters, oleates, rattles, realest, realise, realist, relates, restage, restate, retails, retaste, retiles, retilts, retitle, retoast, retotal, roseate, roselet, rosette, rotates, saltier, seagoer, seriate, settler, slatier, slitter, stagier, starlet, starlit, startle, stealer, sterile, stilter, storage, striate, tailors, targets, tastier, teleost, tertial, testier, tilters, toaster, toilers, toilets, trestle, triages