The word taxidermies 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: 22
Highest Scoring Words With Friends™ Play In The Letters taxidermies
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Seven Letter Word Alert: (73 words)
admires, admixes, aeriest, airiest, airside, airtime, aridest, astride, dairies, dearest, dearies, deities, demates, demerit, diaries, diarist, diester, dieters, dieties, dimeter, dirties, disrate, ditsier, editrix, emirate, existed, extrema, irisate, itemise, meatier, mediate, merited, metrise, midairs, misdate, misedit, misread, mistier, mitered, radixes, readies, readmes, readmit, reasted, redates, reedits, reemits, remated, remates, remixed, remixes, retaxed, retaxes, reteams, retimed, retimes, seamier, sedater, seriate, seriema, sidearm, siriema, smarted, smartie, smeared, steamed, steamer, stimied, tasered, tidiers, timider, tirades, tridems