The word denturists 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: 13
Highest Scoring Words With Friends™ Play In The Letters denturists
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Seven Letter Word Alert: (42 words)
dentist, dissent, dunites, dusters, dustier, entrust, inserts, insured, insures, intrude, intrust, nudists, nutsier, nutters, nuttier, retints, rudites, sinters, sitters, snidest, stinted, strides, student, studier, studies, stunted, stunter, sudsier, suiters, sunrise, tinders, tinters, tissued, trident, trussed, trusted, undress, undrest, uniters, unrests, untired, untried