The word nitrazepams 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: 27
Highest Scoring Words With Friends™ Play In The Letters nitrazepams
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Seven Letter Word Alert: (74 words)
amentia, amnesia, amritas, anapest, animate, antsier, aptamer, apteria, armpits, artisan, artsman, artsmen, atresia, entraps, imparts, inmates, mantrap, mantras, marinas, marines, martens, martian, martins, maziest, minaret, minters, naptime, nastier, painter, panters, panties, parents, parties, pastier, pastime, patinae, patinas, patines, peasant, permits, pertain, pirates, pretans, primase, primate, pterins, raiment, rampant, remains, remints, repaint, restain, restamp, retains, retinas, seminar, sirname, smarten, smartie, spartan, spiraea, stainer, stamina, stamper, tampers, tapeman, tarpans, traipse, trepans, tsarina, tzarina, tzarism, zaniest, zeatins