The word extrapolates 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: 23
Highest Scoring Words With Friends™ Play In The Letters extrapolates
:
Seven Letter Word Alert: (90 words)
aerates, apostle, areolae, areolas, areoles, elaters, elopers, exalter, experts, explore, exports, exposal, exposer, extoler, extorts, laxator, leapers, letters, oleates, operate, oxalate, palates, paleate, palette, palters, parasol, paroles, patrols, patters, peltate, pelters, petrels, petrols, plaster, platers, platter, pleaser, plexors, plotter, poleaxe, portals, portlet, potters, pottles, prattle, prelate, presale, pretest, pretext, protest, rattles, realest, relapse, relates, relaxes, repaste, repeals, repeats, replate, repleat, replots, respelt, restate, retapes, retaste, retaxes, retoast, retotal, roseate, roselet, rosette, rotates, saltate, sealpox, seaport, septate, settler, spatter, spotter, stapler, starlet, startle, stealer, tapster, teapots, teleost, texters, toaster, treetop, trestle