The word trifurcated 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 trifurcated
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Seven Letter Word Alert: (34 words)
attired, attirer, carried, cattier, citrate, crafted, crafter, critter, curated, curried, cutrate, detract, dictate, drafter, drifter, erratic, fattier, fritter, fruited, furcate, rattier, reaudit, recraft, recruit, redraft, refract, retract, ruttier, tardier, tarried, traduce, traduct, tuftier, turfier