The word vituperates 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: 19
Highest Scoring Words With Friends™ Play In The Letters vituperates
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Seven Letter Word Alert: (59 words)
aeriest, artiest, astuter, attires, austere, epurate, estuate, euaster, evitate, iratest, iterate, parties, pastier, pasture, patters, patties, peatier, petites, pettier, pirates, pretest, prevues, private, putters, puttier, putties, repaste, repaves, repeats, respite, restate, restive, retapes, retaste, revuist, septate, seriate, sievert, situate, spatter, sputter, startup, stative, stature, striate, tapster, tastier, testier, tipster, traipse, trivets, trustee, upraise, uprates, upstair, upstart, upstate, veritas, virtues