The word quadruplicating 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: 37
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (93 words)
alginic, alicant, anaptic, angular, antacid, aplitic, aquatic, arugula, augural, caltrap, cantrap, cantrip, canular, capital, captain, carding, carinal, carping, carting, cingula, clipart, cranial, crating, culprit, cupular, curling, curtail, curtain, darling, darting, dialing, digital, diptail, diurnal, draping, ducting, dulcian, dulcing, galtrap, garland, gradual, grandpa, guarani, intagli, lacinia, lairing, languid, larding, lauding, lunaria, lunatic, natural, nautica, nuptial, pairing, partial, parting, patrial, pigtail, pintail, piquant, piquing, placard, placing, plantar, plating, plaudit, prating, pricing, priding, puritan, quadrat, quadric, quantal, quantic, quartic, quintic, quiring, quiting, radiant, radical, raiding, railing, tailgun, tailing, tailpin, tapirid, tilapia, tracing, trading, triadic, truncal, unclipt