The word parallelepipedon cannot be made in Words With Friends™. It is 16 letters long, too long to fit on a WordsWithFriends board (15 letters max).
Highest Scoring Words With Friends™ Play In The Letters parallelepipedon
:
Seven Letter Word Alert: (70 words)
adrenal, aeolian, aileron, aneroid, apparel, applied, applier, areolae, deplane, deplore, dialler, dipolar, doppler, eloined, epipole, lapeled, lapland, learned, leopard, lipread, needier, needler, nippled, opaline, operand, ordinal, paneled, panpipe, papered, papilla, paroled, pearled, peopled, peppier, periled, pioneer, plainer, pleader, ploidal, plopped, pollard, praline, predeal, predial, preened, preload, prepaid, prepend, preplan, prepped, proline, propane, propene, propine, propped, rallied, redline, redpole, redpoll, relined, reoiled, repanel, repiled, repined, repiped, replane, replead, replied, ripened, rippled