The word trifurcates 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: 18
Highest Scoring Words With Friends™ Play In The Letters trifurcates
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Seven Letter Word Alert: (62 words)
acutest, artiest, artsier, astuter, attirer, attires, carries, carters, cattier, cauters, citrate, crafter, craters, cristae, critter, cruiser, curates, curries, cutrate, cutters, erratic, fairest, fattier, fatties, faucets, fitters, fraters, fritter, furcate, furries, iratest, raciest, rafters, ratters, rattier, recraft, recruit, refract, restart, retract, rustier, ruttier, saucier, scarier, scatter, situate, starter, statice, stature, striate, surface, surfeit, tarries, tastier, tracers, trisect, truster, tufters, tuftier, turfier, turrets, uricase