The word achromatizes 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: 29
Highest Scoring Words With Friends™ Plays In The Letters achromatizes
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Seven Letter Word Alert: (74 words)
acaters, achiest, aitches, amritas, atheism, atomics, atomise, atomize, atresia, azoteas, azotise, caeomas, cameras, cashier, chamois, chariot, chaster, chemist, chimera, chromes, cithers, coaster, coheirs, coziest, crazies, cristae, czarism, czarist, earshot, erotica, erotics, hamster, haricot, hastier, haziest, hermits, heroics, heroism, homiest, maestro, marches, matcher, matches, maziest, metrics, mishear, moister, mortise, mothers, octamer, ostrich, raciest, recoats, rematch, rhizoma, rhizome, rhotics, richest, roaches, rosacea, sarcoma, scatoma, scoriae, smartie, smother, somatic, stomach, tarmacs, thermic, thermos, torches, trachea, tzarism, zithers