The word manicurists 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: 19
Highest Scoring Words With Friends™ Play In The Letters manicurists
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Seven Letter Word Alert: (27 words)
animist, atriums, cranium, curtain, incrust, instars, martini, martins, miscast, miscuts, missuit, misturn, racisms, racists, raisins, rustics, sacrums, sanctum, sanctus, satiric, simians, strains, sunstar, sustain, tsarism, tsunami, uncarts