The word lenticular 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: 17
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (29 words)
aircell, article, auricle, cauline, centaur, central, certain, cureall, curtail, curtain, cutline, latrine, literal, lunatic, neutral, nuclear, ratline, recital, reliant, retinal, tallier, trenail, truncal, unalert, unalter, unclear, uncrate, uralite, urinate