The word supplicates 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 supplicates
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Seven Letter Word Alert: (62 words)
alecups, aplites, applets, applies, ascites, aseptic, aspects, aulists, auspice, capless, caplets, capsule, castile, castles, catsups, celsius, cesspit, clauses, cupless, cuspate, elastic, laciest, lipases, lucites, palsies, papules, pastels, pasteup, pasties, pilates, pileups, pitless, plastic, plicate, pulpits, pulsate, pupates, salutes, sculpts, septics, slipups, sluices, spastic, special, specula, spicate, spicula, spicule, splices, splitup, staples, stepups, stipple, stipula, stipule, sulcate, suspect, taluses, teacups, tipless, tipples, upscale