The word streamlined 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: 17
Highest Scoring Words With Friends™ Plays In The Letters streamlined
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Seven Letter Word Alert: (227 words)
admires, aediles, aeriest, ailment, alerted, aliment, altered, amender, aniseed, antlers, antsier, arenite, aridest, armlets, artsmen, astride, damners, dealers, dearest, dearies, delates, delimes, delints, demates, demeans, dements, demerit, denials, deniers, dentals, dentils, derails, deslime, destain, destine, details, detains, detrain, dialers, diester, dieters, dilater, dilates, dimeter, disrate, earnest, eastern, elastin, elaters, emailed, emendal, emerald, emirate, enamels, endears, enlards, entails, enteral, entries, eternal, inmates, instead, laments, landers, lateens, latrine, leaders, leaners, leanest, learned, lenders, lenited, lenites, limeade, lineate, linseed, maidens, mailers, maltier, mandrel, mandril, manlier, mantels, mantled, mantles, marines, marlins, marlite, martens, martins, matinee, mealier, meander, meanest, meanies, meatier, medians, mediate, melters, menders, merited, metaled, metrise, mildest, minaret, minders, mindset, mineral, minters, misdate, misdeal, mislead, misread, mistral, mitered, nailers, nailset, nastier, nearest, nestled, netmail, raiment, ratline, readies, readmes, readmit, realest, realise, realism, realist, reamend, reasted, redates, redeals, redealt, redials, redline, reedits, reemits, related, relates, relents, reliant, relined, relines, remails, remains, remands, remated, remates, remelts, remends, reminds, remined, remines, remints, renails, renamed, renames, rentals, reslant, resmelt, restain, retails, retains, reteams, retiled, retiles, retimed, retimes, retinal, retinas, sainted, salient, saltern, saltier, sandier, sardine, seamier, sedater, seminal, seminar, seriate, seriema, sidearm, sideman, sirname, slander, slanted, slatier, slender, smarted, smarten, smartie, smeared, smelted, smelter, snailed, snarled, stained, stainer, standee, stander, stealer, steamed, steamer, sterane, sterile, sternal, sterned, tandems, tasered, tenders, tendril, tensile, tinders, tirades, tradein, trailed, trained, trainee, tramels, treadle, trenail, triaene, tridems, trienes