The word preciously 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: 20
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (27 words)
clerisy, closeup, closure, cloyers, copiers, coupler, couples, crisply, elusory, leprosy, leprous, lousier, piously, polices, pyloric, pylorus, reclips, recoils, recoups, scruple, sluicer, soupier, spicery, spicule, splicer, spoiler, sporule