The word interiorizes 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™ Plays In The Letters interiorizes
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Seven Letter Word Alert: (36 words)
entries, erotise, erotize, estrone, inerter, inosite, ioniser, ionizer, ionizes, iotizes, ironers, ironies, noisier, norites, orients, reinter, renters, rerents, rerinse, restore, retires, retries, rezeros, rezones, rioters, ritzier, roister, snorter, sterner, stonier, trienes, triones, zeroise, zestier, zionist, zoisite