The word hectoliters 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: 17
Highest Scoring Words With Friends™ Plays In The Letters hectoliters
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Seven Letter Word Alert: (72 words)
cheerio, chortle, cithers, clitter, clothes, clotter, coesite, coheirs, coheres, colters, coltish, coterie, cotters, creoles, echoers, elector, erotics, erotise, estriol, etchers, etheric, helices, heretic, heroics, heroise, heteros, hitters, holiest, holster, hostile, hostler, lechers, letters, litters, loiters, ostrich, rechose, recites, reclose, recoils, reslice, retches, retiles, retilts, retitle, rhotics, richest, roselet, rosette, settler, shelter, slither, slitter, sterile, stilter, stretch, techies, teleost, testier, tethers, thereto, thistle, thorite, tilters, tithers, toilers, toilets, torches, trestle, tricots, trisect, trochee