The word alphabetizing 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: 34
Highest Scoring Words With Friends™ Play In The Letters alphabetizing
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Seven Letter Word Alert: (58 words)
abating, agatine, agatize, albizia, bailing, baiting, baptize, bathing, beating, belting, benight, benthal, biathla, biplane, blazing, blintze, elating, enlight, gelatin, genital, hailing, halting, haplite, healing, heaping, heating, helping, inhabit, intagli, labiate, lathing, leaping, lighten, lignite, nightie, pageant, patinae, pealing, pelting, pentail, phablet, piazine, pigtail, pintail, pithing, planeta, plating, plebian, tabling, tagline, tailing, tailpin, teazing, tilapia, zaptiah, zaptieh, zealant, zipline