The word cosmetician 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: 21
Highest Scoring Words With Friends™ Plays In The Letters cosmetician
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Seven Letter Word Alert: (43 words)
accents, accites, aconite, actinic, actions, amnesic, animist, animose, ascetic, atomics, atomise, atonics, cations, cinemas, cocaine, cometic, conceit, concise, eosinic, icemans, iconism, iconist, incites, incomes, inmates, inosite, masonic, meconic, meiotic, menisci, miniate, miscite, miscoin, moisten, nematic, nicosia, notices, oceanic, octanes, sciatic, section, somatic, somitic