The word lettercard 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 lettercard
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Seven Letter Word Alert: (32 words)
alerted, alerter, altered, catered, caterer, clatter, cleared, clearer, created, declare, deltate, detract, rattled, rattler, reacted, realter, recrate, redealt, relaced, related, relater, retrace, retract, retrade, retread, retreat, terrace, treacle, treader, treadle, treated, treater