The word southeasters 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: 15
Highest Scoring Words With Friends™ Play In The Letters southeasters
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Seven Letter Word Alert: (74 words)
arouses, asserts, assorts, assures, astuter, austere, authors, earshot, estates, estrous, estuate, euaster, hatters, hearses, heaters, heteros, hostess, oestrus, ousters, outrate, outsees, outsets, rashest, reheats, rehouse, reseats, reshoes, restate, retaste, retests, retoast, roseate, rosette, rotates, russets, seaters, sestets, setters, shatter, shouter, shutter, sourest, stashes, staters, statues, stature, stereos, stouter, stratus, streets, tasters, teasers, tersest, testers, tethers, theater, theatre, thereat, thereto, threats, throats, thrusts, toaster, toruses, tossers, touters, trashes, tresses, trusses, trustee, tsetses, tutoree, ureases, urostea