The word stigmatization 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 stigmatization
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Seven Letter Word Alert: (27 words)
against, agnosia, agonism, agonist, amazing, amongst, angioma, animist, atonias, attains, gnomist, matings, matting, misting, moating, sangoma, sitting, smiting, stamina, stating, station, stomata, tasting, timings, tomtits, zionism, zionist