The word supportable 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: 22
Highest Scoring Words With Friends™ Play In The Letters supportable
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Seven Letter Word Alert: (84 words)
ablutes, abortus, apostle, applets, apposer, blaster, bloater, bluster, boaster, boaters, bolster, bolters, boppers, borates, bursate, bustler, butlers, elutors, estrual, labours, laptops, leprous, lobster, loppers, obtuser, outleap, outraps, outspar, palters, papules, paroles, pasteup, pasture, patrols, paupers, perusal, petrols, plaster, platers, plouter, poplars, popular, portals, posture, potable, poulter, pouters, preplot, probate, propels, pueblos, pulpers, pulsate, pupates, purples, purpose, rappels, reblast, reboast, replots, rubeola, saluter, seaport, sorbate, sporule, spouter, stabler, stapler, stopper, subplot, subport, subtler, suppler, support, taboule, tappers, toppers, topples, trouble, troupes, upbeats, uprates, upslope, urostea