The word polemicising 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: 25
Highest Scoring Words With Friends™ Play In The Letters polemicising
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Seven Letter Word Alert: (52 words)
ceiling, closing, cognise, coiling, comings, compels, compile, copings, copsing, elision, eloigns, eloping, eosinic, epilogs, epsilon, genomic, glimpse, iconism, impinge, implies, incomes, legions, limping, lingoes, lionise, lionism, lisping, menisci, mingles, miscoin, pencils, piecing, pigeons, pigmies, pilings, pingles, pingoes, pleions, poising, polemic, polices, psionic, scoping, semilog, silicon, slicing, sliming, sloping, smiling, soiling, spicing, splenic