The word lettercards 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: 16
Highest Scoring Words With Friends™ Play In The Letters lettercards
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Seven Letter Word Alert: (97 words)
alerted, alerter, altered, carders, careers, cartels, carters, castled, catered, caterer, cerates, cereals, clarets, clatter, cleared, clearer, cradles, craters, creased, creaser, created, creates, crested, darters, dealers, dearest, decares, declare, delates, deltate, descale, detects, detract, elaters, larders, leaders, letters, ratters, rattled, rattler, rattles, reacted, readers, realers, realest, realter, reasted, reclads, recrate, redacts, redates, redeals, redealt, relaced, relaces, related, relater, relates, rereads, rescale, restart, restate, retards, retaste, retears, retrace, retract, retrade, retread, retreat, scarlet, scarred, scatted, scatter, sclerae, sedater, serrate, settled, settler, slatted, starlet, starred, started, starter, startle, stealer, tasered, tearers, terrace, tracers, traders, treacle, treader, treadle, treated, treater, trestle