The word interlarded 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™ Plays In The Letters interlarded
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Seven Letter Word Alert: (70 words)
alerted, alerter, altered, arenite, dandier, dandler, deaired, delated, derider, dernier, detrain, detrend, dilated, dilater, drained, drainer, dreader, earlier, enteral, eternal, inerter, lardier, latrine, learned, learner, lenited, lineate, nerdier, randier, ratline, readied, readier, realter, redated, redealt, redline, redried, reinter, related, relater, relearn, reliant, relined, retiled, retinal, retired, retrade, retrain, retread, retrial, retried, tardier, tarried, tearier, tendril, terrain, terrane, tireder, tradein, trailed, trailer, trained, trainee, trainer, treaded, treader, treadle, trenail, trended, triaene