The word interrelated 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: 15
Highest Scoring Words With Friends™ Play In The Letters interrelated
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Seven Letter Word Alert: (92 words)
alerted, alerter, altered, arenite, attired, attirer, deerlet, deleter, deltate, dentate, dernier, detente, detrain, dilater, drainer, earlier, enteral, entered, enterer, entitle, entreat, eternal, inerter, iterate, lardier, latrine, learned, learner, leerier, lenited, lineate, nattier, needier, needler, nerdier, nettled, nitrate, randier, ratline, rattier, rattled, rattler, readier, realter, redealt, redline, reedier, reenter, reinter, related, relater, relearn, reliant, relined, retiled, retinal, retired, retiree, retitle, retrade, retrain, retread, retreat, retreed, retrial, retried, tainted, tardier, tarried, tearier, teenier, tendril, tentier, ternate, terrain, terrane, tertial, tireder, tradein, trailed, trailer, trained, trainee, trainer, treader, treadle, treated, treater, treelet, trenail, triaene, trident