The word alleviators 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™ Play In The Letters alleviators
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Seven Letter Word Alert: (47 words)
aerials, allstar, alveola, alveoli, areolas, atresia, aviates, aviator, estival, estriol, isolate, lariats, lateral, literal, loiters, ovaries, overall, overlit, oversat, oversit, rallies, realist, reallot, reavail, retails, retills, revolts, rillets, saltier, slatier, stellar, stiller, tailors, tallier, tallies, tillers, toilers, tollers, travail, travels, trellis, variate, variola, velaria, veritas, violate, violets