The word commercialise 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: 26
Highest Scoring Words With Friends™ Plays In The Letters commercialise
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Seven Letter Word Alert: (67 words)
acerose, amerces, areoles, calicos, caloric, calorie, celosia, ceramic, cereals, circles, claimer, clammer, clamors, cleomes, clerics, coalers, coalier, coalise, coeliac, coerces, comical, creoles, eclairs, escolar, icicles, immerse, immoral, isomere, laicise, loamier, mailers, maimers, malices, mealier, memoire, memoirs, mercies, miasmic, miracle, morales, oracles, racemes, racemic, realise, realism, reclaim, reclose, recoals, recoils, relaces, remails, rescale, reslice, rosalic, scalier, sclerae, scoriac, scoriae, seamier, seriema, similar, siriema, slammer, slimier, slimmer, smilier, solacer