The word replenishing 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™ Plays In The Letters
Seven Letter Word Alert: (46 words)
engines, english, girlies, girlish, girnels, greisen, heeling, helpers, helping, hinnies, inlines, inspire, leering, lensing, lignins, lingers, linings, lisping, peeling, peering, penners, pennies, pilings, pinenes, pingers, pingler, pingles, reeling, rehinge, reining, relines, repiles, repines, replies, reshine, rinsing, seeping, shingle, shinier, shining, slinger, sniping, spiegel, spinier, spinner, spiring