The word moisturising 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™ Plays In The Letters moisturising
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Seven Letter Word Alert: (38 words)
gnomist, ignitor, issuing, missing, mission, missort, missuit, misting, misturn, mitosis, mossing, mousing, musings, nitrous, nostrum, origins, ousting, outgrin, outings, rioting, risings, rousing, routing, rusting, signors, smiting, sorting, souring, storing, strings, suiting, suitors, timings, tossing, touring, tourism, unsorts, urnmoss