The word lithoglyptics 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: 27
Highest Scoring Words With Friends™ Plays In The Letters lithoglyptics
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Seven Letter Word Alert: (28 words)
colitis, coltish, copyist, ghostly, glitchy, glottis, glycols, glyphic, glyptic, gothics, hilltop, illogic, lightly, oligist, pithily, plights, politic, shitpot, sightly, solicit, spicily, splotch, spotlit, styptic, sylphic, thistly, tightly, tipsily