The word miniaturisation 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™ Play In The Letters miniaturisation
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Seven Letter Word Alert: (60 words)
amnions, amounts, amritas, animist, anoints, artisan, artsman, atonias, atriums, attains, automat, instant, intorts, introns, intrust, intuits, inturns, ironman, mansion, mantras, marinas, martian, martini, martins, matrons, minions, misturn, mutants, nations, nitrous, nonarts, nonsuit, nostrum, oarsman, outmans, outrant, rainout, rations, rattons, samurai, saurian, stamina, stannum, station, stomata, straint, stratum, tantrum, tartans, tourism, tourist, transit, traumas, tritium, tritoma, truants, tsarina, tsunami, tuition, unstain