The word mnemotechnical 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: 31
Highest Scoring Words With Friends™ Play In The Letters mnemotechnical
:
Seven Letter Word Alert: (92 words)
acetone, aconite, ailment, alethic, aliment, aloetic, ammonic, ancient, anemone, antlion, cacolet, calcine, calcite, caliche, caltech, cannoli, canonic, canteen, catenin, chalice, chancel, channel, chaotic, chelate, cholate, choleic, choline, clement, climate, coalite, coalmen, cocaine, cochlea, coeliac, cometic, comical, comment, conceal, conceit, conical, connect, contain, echelon, elation, eminent, enamine, enchain, enchant, enhance, enolate, ethanol, ethical, hemline, hotline, laconic, lactone, lection, lenient, licence, lineate, lineman, linemen, machete, machine, mailmen, manhole, matinee, meconic, melanin, memento, memetic, menthol, mention, methane, metical, miocene, montane, nematic, neonate, netmail, nominal, nominee, nonlate, nonmail, nonmale, nonmate, nonmeal, nonmeat, oceanic, onetime, telecom, toenail