The word groundspeeds 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: 21
Highest Scoring Words With Friends™ Play In The Letters groundspeeds
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Seven Letter Word Alert: (90 words)
dengues, denuder, denudes, depends, deponed, depones, deposed, deposer, deposes, depress, despond, dodgers, dousers, dredges, dresden, dressed, dressup, drudges, endorse, endured, endures, engross, ensured, ensures, espouse, genders, genuses, goddess, godsend, gourdes, grossed, grounds, grouped, groused, grouses, guerdon, guessed, guesser, negroes, nodders, oddness, openers, persons, perused, peruses, ponders, poseurs, pounded, pounder, pressed, pronged, reddens, redness, redound, reopens, reposed, reposes, resends, resound, respond, rounded, seedpod, senders, snudged, snudges, soddens, sodgers, sounded, sounder, spender, spondee, sponged, sponger, sponges, spoused, spurges, spurned, suddens, sundogs, supered, surgeon, suspend, undergo, undoers, undoped, undosed, undress, unedged, unposed, upended