The word latticework 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: 22
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (38 words)
airlock, aloetic, article, calorie, catlike, cattier, catwort, citator, citrate, clatter, clitter, clotter, coalier, coalite, cowlike, cowrite, earlock, erotica, ketotic, kittler, lattice, oarlike, oatlike, ratlike, recital, recloak, retotal, ricotta, tackier, tackler, tactile, tertial, tickler, titlark, trickle, wackier, warlike, warlock