The word transitives 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: 16
Highest Scoring Words With Friends™ Play In The Letters transitives
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Seven Letter Word Alert: (64 words)
airiest, antsier, artiest, artists, attires, inertia, inserts, instars, instate, inverts, invests, inviter, invites, iratest, irisate, naivest, nastier, natives, natters, nattier, nitrate, nitrite, nittier, raisins, ravines, restain, retains, retinas, retints, revisit, satires, seitans, servant, sestina, sinters, sitters, stainer, starves, staters, statins, stative, stivers, stivier, strains, straint, straits, striate, striven, strives, tasters, tastier, taverns, tiniest, tinters, tintier, transit, trivets, tsarist, vainest, vastest, verists, veritas, vitiate, vitrine