The word categorizing 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™ Play In The Letters
Seven Letter Word Alert: (50 words)
aconite, agonize, carting, catogen, certain, citizen, citrine, coating, cognate, coinage, coreign, crating, crazing, enactor, erotica, gaiting, gearing, gigaton, gracing, granite, grating, grazing, iconize, igniter, ignitor, inciter, inertia, ingrate, ionizer, ironage, orating, organic, otarine, reicing, ringgit, rioting, taggier, tangier, tearing, teazing, tiering, tracing, zeroing, zincate, zincier, zincite, zingare, zingari, zingaro, zingier