The word perpetuation 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: 20
Highest Scoring Words With Friends™ Play In The Letters perpetuation
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Seven Letter Word Alert: (63 words)
appoint, arenite, entreat, epitope, epurate, etaerio, eupnoea, inepter, iterate, nattier, nitrate, nuttier, operant, operate, otarine, outearn, outpipe, outrant, outrate, painter, patient, patriot, pattern, peatier, peptone, pertain, pettier, petunia, pioneer, pipette, pointer, portent, poutier, poutine, prenote, pretape, pronate, propane, propene, propine, protean, protein, puritan, puttier, rainout, reinput, repaint, repoint, reunite, routine, taunter, tentier, ternate, terpine, tiptoer, trainee, treetop, triaene, triptan, tutoree, urinate, uterine, utopian