The word correctional 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™ Plays In The Letters correctional
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Seven Letter Word Alert: (73 words)
aconite, aileron, aircool, aloetic, article, cacolet, calcine, calcite, caloric, calorie, caroler, carrion, cartoon, central, centric, certain, circler, circlet, clarion, coactor, coalier, coalite, cocaine, coeliac, colonic, colorer, conceal, conceit, concert, conical, control, coolant, corneal, cornice, cornier, coronal, coroner, coronet, correct, creator, crooner, elation, enactor, erotica, erratic, icecool, laconic, lactone, latrine, lection, locator, loonier, oceanic, oncotic, oration, ornater, otarine, raccoon, ratline, reactor, realtor, recital, recolor, reliant, retinal, retinol, retrain, retrial, terrain, toenail, trailer, trainer, trenail