The word collectivizing 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: 38
Highest Scoring Words With Friends™ Play In The Letters collectivizing
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Seven Letter Word Alert: (33 words)
ceiling, celling, citizen, coiling, colicin, collect, conceit, convect, convict, eviting, iconize, illicit, illitic, illogic, invoice, lection, lignite, lilting, lionize, olivine, ovicell, telling, tilling, toiling, tolling, veiling, vetoing, violent, violing, vitelli, voicing, zillion, zincite