The word manipulatively 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: 30
Highest Scoring Words With Friends™ Plays In The Letters manipulatively
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Seven Letter Word Alert: (69 words)
ailment, aliment, alltime, alluvia, alumina, alumnae, alumnal, amenity, amentia, ampulla, analyte, animate, anytime, aplenty, eluvial, emptily, emulant, ilvaite, impanel, impiety, implant, ineptly, laminae, laminal, lamplit, laytime, limelit, manilla, meatily, miniate, mullite, naively, naivety, naptime, netmail, nullity, nuptial, nutmeal, paenula, pallium, palmate, patella, patinae, payment, penalty, pentail, petunia, pintail, plainly, planeta, plateau, playlet, pluvial, ptyalin, putamen, pyaemia, tailpin, tapeman, tilapia, timpani, tympani, valiant, valuate, vanilla, villain, vitally, vitamin, vitelli, vulpine